ebubest19:
Every Physicist, Chemist, Engineer,The military, Pharmacist and Doctors must be grounded i mathematics, even in football mathematic is comming into play.
For instance, for the military to lounch a missile, the must have the idea of projectile motion- which has alot of Physics and Mathematics.
By the way the man who invented the computer is a mathematics.

This was the answer my maths 101 lecturer gave me when I asked same question. But I have not seen where differentiation and integration have been used to solve real life problems. The mathematics I have seen even the engineers using is elementary mathematics like the ones we did in primary and secondary schools. Integration and differentiation ends in the 4 walls of the university. Am I wrong?

naturalwaves:

You can take it up from there sir.I couldn't think of any other way to get the radius

u r gud bro. Jst use dat expression nd u will get ur radius.

XXX5:
A Construction Firm wishes to use a group of fifty professionals to execute a project. These fifty are to be selected from 110 engineers. there are Y number of women in the firm and X number of men. The number of male engineers necessary to complete the project are 10100 to base two. If the firm consists of [(50!/49!)+(5²-√{225!/224!})] women, Calculate the value of... [(X²+Y³)25]/e10]+(65/{5×√4}²).


HINT: I refer to this question as a chain of EVALUATIONS in which only those able to manipulate Complexities are able to solve.
GOOD LUCK!

0.65054625

jamace:
Seeing the way some guys rattle mathematics here, a genuine thought just came into my head. Why is it that great mathematicians are not the richest (money) in the world?.
Reason: Most of the things they do in advanced mathematics are for entertainment/fun (call them games) and can not be applied to real life situations. Otherwise, can any mathematics teacher/student here tell me whether they have integrated or differentiated their problems and arrived at a real life solution? For instance, you are broke and you applied integration or differentiation to the problem and produced money.
Note: I love mathematics.

Sorry, you have a wrong concept of mathematics, same problem with many of us in Africa. We can't conceptualize science. Maths is not used for all those things you mentioned but common sense.

Maths is used in real life for example; calculating the best code to write softwares to power machines, calculating the best mechanisms in robotics design, calculating the best way to make a mobile phone weigh less, e.t.c. It's mostly used in engineering. If you use computer, mobile phone, e.t.c the calculations that make the machines work were done by mathematicians.

Are you an Engineer, Physicist or does your area of specialilization involves more of mathemathics?

jamace:
This was the answer my maths 101 lecturer gave me when I asked same question. But I have not seen where differentiation and integration have been used to solve real life problems. The mathematics I have seen even the engineers using is elementary mathematics like the ones we did in primary and secondary schools. Integration and differentiation ends in the 4 walls of the university. Am I wrong?

musicwriter:


Sorry, you have a wrong concept of mathematics, same problem with many of us in Africa. We can't conceptualize science. Maths is not used for all those things you mentioned but common sense.

Maths is used in real life for example; calculating the best code to write softwares to power machines, calculating the best mechanisms in robotics design, calculating the best way to make a mobile phone weigh less, e.t.c. It's mostly used in engineering. If you use computer, mobile phone, e.t.c the calculations that make the machines work were done by mathematicians.

The same story my lecturer told me. What I'm saying is, do you use integration and differentiation to calculate the best code for softwares, best mechanism in robotics design etc. I have stayed with practicing engineers and all I see them using are simple every day mathematical equations like, Area = Length x Breadth, V= u +at, where figures are substituted into the formula and their job is done. No integration and differentiation or Abstract Algebra.

jamace:
This was the answer my maths 101 lecturer gave me when I asked same question. But I have not seen where differentiation and integration have been used to solve real life problems. The mathematics I have seen even the engineers using is elementary mathematics like the ones we did in primary and secondary schools. Integration and differentiation ends in the 4 walls of the university. Am I wrong?

have u heard of fluid mechanics?...quantuum mechanics...topology....tensor analysis?......engineers and economists largely make use of differentiation and integration...don't expose ur ignorance next time...cheers!

XXX5:
Solution:
Upper limit of the set = 50
n + r = 50 + 5
n + r = 55
n = 55 - r
from St 2.
n × r = 750
but n = 55 - r
hence,
r(55 - r) = 750
r² - 55r + 750 = 0
r² - 30r - 25r + 750 = 0
r(r - 30) -25(r - 30) = 0
r = 30 Or 25.
but n + r = 55
for r = 25
n = 55 - 25 = 30.
for r = 30
n = 55 - 30 = 25.
but n + r > 50 by 5.
if r = 25 and n = 30
25 + 30 = 55 > 50 by 5.
and from the question, n > r.
so the right evaluation to be used is
r = 25 and n = 30.
Now, nPr
nPr = n!/(n - r)!
nPr = 30!/(30 - 25)!
nPr = 30!/5!

abeg take am easy o

ebubest19:
Are you an Engineer, Physicist or does your area of specialilization involves more of mathemathics?

I have lived with all of the mentioned. None of them have used integration or differentiation to solve practical problems. All I see them use are every day mathematics. In fact, I met an engineer installing an equipment in our office. I saw him open a manual. Out of curiosity, I peeped into the manual to see whether he was using differentiation and integration. Behold, he was using a simple linear equation and was just substituting figures to set the equipment. To satisfy my curiosity, I asked him why he was not using integration and differentiation. He said, "My brother, leave those things alone. They are difficult and stopped in the 4 walls of the university". I was like, why waste ones time studying what will not be used in real life situation?

jdbrasco:
u r gud bro. Jst use dat expression nd u will get ur radius.

Okay, thanks. n= (44/7)r^2. p=99/100. What does the E stand for? And what will be the value so we can solve for r? Thanks.

killsmith:
have u heard of fluid mechanics?...quantuum mechanics...topology....tensor analysis?......engineers and economists largely make use of differentiation and integration...don't expose ur ignorance next time...cheers!

I have heard more of all those including Abstract Algebra, but all the nonsense ended in the 4 walls of the university. Why waste precious time studying what can not better ones life. Life is simple. Why waste time trying to prove what some men saw in the spirit world?

jamace:
The same story my lecturer told me. What I'm saying is, do you use integration and differentiation to calculate the best code for softwares, best mechanism in robotics design etc. I have stayed with practicing engineers and all I see them using are simple every day mathematical equations like, Area = Length x Breadth, V= u +at, where figures are substituted into the formula and their job is done. No integration and differentiation or Abstract Algebra.

Maths is not just about 1+1 so your view is very simplistic to say the least. Maths is life!. Maths make physics posible, maths makes chemistry possible. Yes, everyday whether you're aware of it or not you're solving maths questions in your daily life as you seems to suggest earlier. But, that's not where it ends. You think that's where it ends?.
The problem is you can't conceptualize maths. Very few will understand what I'm talking about.

musicwriter:


Maths is not just about 1+1 so your view is very simplistic to say the least. Maths is life!. Maths make physics posible, maths makes chemistry possible. Everyday whether you're aware of it or not you're solving maths questions in your daily life. But, that's not where it ends. You think that's where it ends?.
The problem is you can't conceptualize maths. Very few will understand what I'm talking about.

Yes. I understand you. I am saying that we should study simple mathematics in our universities so that we can apply them to real life. Why study mathematics that is only useful for academic exercise only? Mathematics that can not solve simple life's problem is useless, just like differentiation, integration, topology, abstract algebra e.t.c! Period.

The guy that told you that integration and differenciation stops in the four walls of a university, doesn't know what he is saying.
Though am still an aspiring Physicist most equations formulated in solving problems involves integration and differentiation. For in stance, if you want to determine the current through an inductor, you integrate. Also if you want to determine the equation of a constructive or destructive interference, you differentiate e.t.c. Also for an engineer trying to design a generator or transformer, he must apply differenitiation in order to determine the rate of change of magnetic line of flux.

jamace:
I have lived with all of the mentioned. None of them have used integration or differentiation to solve practical problems. All I see them use are every day mathematics. In fact, I met an engineer installing an equipment in our office. I saw him open a manual. Out of curiosity, I peeped into the manual to see whether he was using differentiation and integration. Behold, he was using a simple linear equation and was just substituting figures to set the equipment. To satisfy my curiosity, I asked him why he was not using integration and differentiation. He said, "My brother, leave those things alone. They are difficult and stopped in the 4 walls of the university". I was like, why waste ones time studying what will not be used in real life situation?

naturalwaves:


0.6503215

Check your answer again. Y is number of women ie 60 not the other way round.

Hahaha,I won't even try because any calculations dat is beyond 3lines is an enemy,a no go area[color=#990000][/color]

;DMehn,see gurus dem and dey r mostly guys...I dnt envy them one bit

rapins:


Check your answer again. Y is number of women ie 60 not the other way round.

Thanks. I have resolved and I got "0.65054625" as the answer. Does this tally with yours?

naturalwaves:

Thanks. I have resolved and I got "0.65054625" as the answer. Does this tally with yours?

Yes.

like if u are seeing such maths 4 d first tym.

rapins:


Yes.

Good we are on the same page. Did you try the word problem on page 4 about the age of a woman and her husband? That's a bit trickish though I have solved it, you may want to try it too.

naturalwaves:

Good we are on the same page. Did you try the word problem on page 4 about the age of a woman and her husband? That's a bit trickish though I have solved it, you may want to try it too.

Yes I did and your answer was correct.

That nah easy maths.
What I have found is math becomes easy when you practice it yourself and understand the principles and methodology

Impressive

Go and ask Chike Obi

PHAYOL81:
Dis is exactly y i hate MADmatics....it looks really crazy i cant underrstand a thng.Tell d answr and i'd still found it difficult 2 get it yet.#effect of MADmatics#

bro mathematics is not hard..its English that is hard...My lecturer once said that if you understand English very well u can solve any mathematics and that's true....Understand the grammar used and u will be able to solve it...

Burn notice!!!!!

I'm not a Mathematician,,, I'm a Pure MICROBIOLOGIST

There are three playing cards lying face up, side by
side. A five is just to the right of a two. A five is
just to the left of a two. A spade is just to the left of
a club, and a spade is just to the right of a spade.
What are the three cards?

naturalwaves:

Okay, thanks. n= (44/7)r^2. p=99/100. What does the E stand for? And what will be the value so we can solve for r? Thanks.

Natural waves ff'ing...ff bck pls

naturalwaves:

You can follow this simple method. Same can be used to solve 3^ X = 9X in which X= 3.

See your log cancelling....datz mathematically wrong....

laryom1:
See your log cancelling....datz mathematically wrong....

Yeah, I have asserted that long ago, the funny thing is the way it seems to work for other similar problems liie the example above.