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Nairaland Forum / Nairaland / General / Education / Who Can Solve This Maths? (27772 Views)
Help,solve This Maths. / Great Mathematicians Help Me Solve This Maths Please / Can U Solve This Primary 6 Quantitative Reasoning (2) (3) (4)
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Re: Who Can Solve This Maths? by kessler53(m): 10:39pm On Mar 27 |
remsonik:bravo, but where you de work now? |
Re: Who Can Solve This Maths? by Boldideas: 10:40pm On Mar 27 |
Winterhaven: The answer does not pay bills.... |
Re: Who Can Solve This Maths? by 360command: 10:41pm On Mar 27 |
LillyandDaisy:what we were taught in school and what they teach other students in different countries, only God knows which is correct. In America, to solve that, they will tell you Pemdas (parenthesis, exponents, multiplication, division, addition, subtraction. Note, we were taught bodmas. In the USA, what Nigeria calls brackets () is what Americans say as parenthesis () . In America [ ] ,they call it brackets. Now in that equation given , we have parenthesis , brackets and exponents, addition and subtraction. So using pemdas apply unlike the formula you chose "bodmas" might not necessarily apply. But hey, ignore all I have written above. You are right, you are wrong. Americans are right. Americans are wrong. I got to know this when my son brought his assignment and I saw his class work. I gave up and did not want to confuse the boy but I told him to apply what he was taught in school. 1 Like |
Re: Who Can Solve This Maths? by RPG2020(m): 10:42pm On Mar 27 |
Very simple i remembered that year in garri school we used to solved the maths ➗➖ simple as ABC 🔤 |
Re: Who Can Solve This Maths? by Omoawoke: 10:43pm On Mar 27 |
Kukutente23: From the way I asked the question, I’m sure you realize I know what I’m talking about. I know the application of logarithms and exponential. It’s just the way education is being taught in Nigeria. People solve different mathematical equations without knowing the applications |
Re: Who Can Solve This Maths? by sunsweet33: 10:45pm On Mar 27 |
rillchritty: Everybody is saying it’s 0, does it mean all their calculators are faulty… |
Re: Who Can Solve This Maths? by CoolUsername: 10:48pm On Mar 27 |
rillchritty: You're right 2 Likes
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Re: Who Can Solve This Maths? by rillchritty(m): 10:49pm On Mar 27 |
sunsweet33: Yes, I can authoritatively say that they are all wrong! I explained in my original reply why a calculator that does not have capacity for variable precision arithmetic CANNOT correctly evaluate the expression. 1 Like |
Re: Who Can Solve This Maths? by Sweetcrude19: 10:50pm On Mar 27 |
The answer is 0 1 Like |
Re: Who Can Solve This Maths? by LillyandDaisy: 10:50pm On Mar 27 |
360command: |
Re: Who Can Solve This Maths? by rillchritty(m): 10:56pm On Mar 27 |
GABRIEL6036: Careful with your assumptions! For a large number x, although 1/x is close to zero, the expression (1 - 1/x)^x is NOT close to 1. Its value is approximately 1/e, where e is Euler's number (e = 2.71828). To understand why that is so, read about limits in any introductory calculus textbook. If you are not convinced, try to evaluate (1 - 1/x)^x for a set of increasingly large numbers that your calculator can handle, say, x = 8*10^16, 8*10^17, 8*10^18,... What you will notice is that the answer keeps getting closer and closer to 0.36787944117144, and when you get to about 8*10^31, you suddenly start getting 0 (showing that the numerical precision of the calculator is no longer enough for accurate evaluation of the expression). To avoid this, one must use variable precision arithmetic instead (MATLAB and Octave support that functionality). 3 Likes |
Re: Who Can Solve This Maths? by AuwalYusuf812(m): 10:57pm On Mar 27 |
Even my 8yrs old daughter can solve this |
Re: Who Can Solve This Maths? by rillchritty(m): 11:01pm On Mar 27 |
Light78: The approximation in your second step is not precise enough. Check my reply to @GABRIEL6036's post above. |
Re: Who Can Solve This Maths? by Winterhaven(m): 11:01pm On Mar 27 |
Crunchy12:you tried, but the answer is far from zero |
Re: Who Can Solve This Maths? by Winterhaven(m): 11:02pm On Mar 27 |
Crunchy12:you tried, but the answer is far from zero |
Re: Who Can Solve This Maths? by sunsweet33: 11:11pm On Mar 27 |
rillchritty: Well…in the modern world it’s more sensible to use a calculators and AI robots…in consequence you can see the whole page littered with wrong answers…never mind.. 🤷🏾♀️ |
Re: Who Can Solve This Maths? by Moniya4Real(m): 11:17pm On Mar 27 |
Nice one guys. Watching as people who likes the Bob that is risky kind of news will avoid this thread like a plague. Boo$s and Yan$h are not involved. |
Re: Who Can Solve This Maths? by GABRIEL6036: 11:19pm On Mar 27 |
rillchritty:This is another method for you dummy 🤣 Given expression: 1 − ( 1 − 1 8 × 1 0 67 ) 8 × 1 0 67 1−(1− 8×10 67 1 ) 8×10 67 Simplify the inner expression first: 1 − 1 8 × 1 0 67 1− 8×10 67 1 To simplify the fraction, we can rewrite 8 8 as 2 3 2 3 : 1 − 1 2 3 × 1 0 67 1− 2 3 ×10 67 1 This can be further simplified to 1 − 1 2 3 × 1 1 0 67 1− 2 3 1 × 10 67 1 Which simplifies to 1 − 1 8 × 1 1 0 67 1− 8 1 × 10 67 1 Further simplifying, we get 1 − 1 8 × 1 0 67 1− 8×10 67 1 So, the inner expression simplifies to 1 − 1 8 × 1 0 67 1− 8×10 67 1 Now, raise this to the power of 8 × 1 0 67 8×10 67 : ( 1 − 1 8 × 1 0 67 ) 8 × 1 0 67 (1− 8×10 67 1 ) 8×10 67 Since 8 × 1 0 67 8×10 67 is a very large number, this term approaches � − 1 e −1 as the exponent approaches infinity. So, this term simplifies to � − 1 e −1 (where � e is Euler's number, approximately 2.71828 2.71828). Finally, 1 − � − 1 1−e −1 is approximately 0.63212 0.63212. Therefore, the result of the expression is approximately 0.63212 0.63212 |
Re: Who Can Solve This Maths? by rillchritty(m): 11:20pm On Mar 27 |
sunsweet33: It depends on the level of precision required in the application. If your application involves computation with numbers as large as 8*10^67, then surely, the precision offered by common calculators is going to be inadequate. |
Re: Who Can Solve This Maths? by rillchritty(m): 11:22pm On Mar 27 |
GABRIEL6036: That's exactly the answer I already gave in my original reply! And for goodness sake, format your post properly; it is hardly readable. 4 Likes 1 Share |
Re: Who Can Solve This Maths? by GABRIEL6036: 11:23pm On Mar 27 |
rillchritty:Thanks buddy, we are now on same page 👍 |
Re: Who Can Solve This Maths? by OGrockinnewacct: 11:24pm On Mar 27 |
Noniblaq: Are you the one in Abuja? |
Re: Who Can Solve This Maths? by Dididrumz(m): 11:34pm On Mar 27 |
YoungLionken: You don see person wey be guru for maths wey still Sabi English? 😂😂😂 All my maths guru friends from my university days, all of them write waec more than 3 times because of only English language. But these guys dey make lecturer fear to come class, especially when we been dey do MTH 205 - real analysis for 200 Level. 1 Like |
Re: Who Can Solve This Maths? by sunsweet33: 11:35pm On Mar 27 |
rillchritty: So what is the difference between you who intuitively noticed that the stuff was too big for a calculator and all these other people who were confident that the answer was zero…don’t you think the question was already flawed… You are just John the Baptist in here cos what you’re exclaiming into the wilderness was already lost on 99% of the population smh… Imagine someone using these things for a government department or a bank..if we take this thread as a sample, most people won’t even get it..which means after 1 calculation the whole place has already collapsed…hahaha |
Re: Who Can Solve This Maths? by 7arrows: 11:37pm On Mar 27 |
Winterhaven: The answer is -1/apc |
Re: Who Can Solve This Maths? by tete7000(m): 11:37pm On Mar 27 |
Winterhaven: Nothing to solve, you can only simplify. It is a mathematical expression, not an equation you can solve. |
Re: Who Can Solve This Maths? by Dididrumz(m): 11:38pm On Mar 27 |
NameInUse: Then, just say you no Sabi maths instead of to say you no like maths. Because if to to say true true you no like maths, You no go envy who Sabi am. |
Re: Who Can Solve This Maths? by Winterhaven(m): 11:38pm On Mar 27 |
rillchritty:Your answer is correct. Thanks for your responses, you are a real maths guru. 2 Likes |
Re: Who Can Solve This Maths? by Winterhaven(m): 11:41pm On Mar 27 |
tete7000:simplify it |
Re: Who Can Solve This Maths? by CoolUsername: 12:11am On Mar 28 |
GABRIEL6036: Calling someone a dummy and then ending up agreeing with them within the same comment is wild 1 Like |
Re: Who Can Solve This Maths? by Thabothabo101: 12:23am On Mar 28 |
rillchritty: Please share the steps for displaying this the way it is. I imagine you use latex. |
Re: Who Can Solve This Maths? by PropertyBuying(f): 12:23am On Mar 28 |
So Simple iamtardey: |
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