Ok na. How abt the physics thread does it still exist?

benbuks: Ok na. How abt the physics thread does it still exist?

check through your post and click the thread

doubleDx:

Welcome back Chief General echibuzor...hailings, it's been a while! Hope all is good with you?

All is well o, Eyes just block jare... I can see u have held the fort quite well....

kwakayekaa: check through your post and click the thread

.alright thanks. Is on the front page nw...

Please brothers if e^x is =1+x+(x^2/2!) and so on,what is the value of e^2 and what is the value of 2^x

Please I need help with these:
1. Integrate ( ^4-x/_4+x )

2. Integrate (^5-x/_1+(x-4)^1/2)

Cashio: Please brothers if e^x is =1+x+(x^2/2!) and so on,what is the value of e^2 and what is the value of 2^x

..put x=2 ...e^2 =1+2+4/2+ 8/6 +16/24 + . . .=7.333...
2^x =e^ln (2^x) =e^xln 2...cn u finish frm dia?.

statusnet: Please I need help with these:
1. Integrate ( ^4-x/_4+x )

2. Integrate (^5-x/_1+(x-4)^1/2)

..1) put k=4+x
=> x=k-4
dk/dx=1
we have .integral of (4-(k-4) /k dk =integral(8/k -1) =8ln (4+x) -4 +x + c...

benbuks: ..1) put k=4+x
=> x=k-4
dk/dx=1
we have .integral of (4-(k-4) /k dk =integral(8/k -1) =8ln (4+x) +4 +x + c...

Thanks, the answer is 8ln(4+x)-x+c . When does this type of substitution apply?

statusnet:

Thanks, the answer is 8ln(4+x)-x+c . When does this type of substitution apply?

..r u sure dat ans. Z koret.?.though i made mistake.. It should be 8ln(4+x) -4+x + c..

2. Integrate (^5-x/_1+(x-4)^1/2)[/quote]
Solution.
let u=sqrt(x-4). du/dx=1/2sqrt(x-4). du=dx/2sqrt(x-4).frm u=sqrt(x-4) square both sides we av u^2=x-4. u^2+4=x. Nw lets put everytin bak to d questn.
2§u(1-u^2)du/u+1. I tink u can continue 4rm here. The ans is x-2/3*(x-4)^3/2+C. All is well.

jauntee02: this angle is great on the whole circle of nairaland.!

Nice job mathematicians.

Just joining the house but find it highly interestng.

Someone should please get this done:

for some fixed number k,let W be a set of all real valued functns for which f(6)=k.
Are there any values of k for which W will be a subspace of F[a,b] with a=< 6 =<b?

...a little more time bro....@ most by sunda ur solution should b ready...

Where is that my mathematics "queen"..?..wana ask her a question..

Nairaland Maths Quiz loading.....
All math Gurus should get ready...i'll be contacting some of the Generals who will serve as Quiz masters soon
cheers!!!

benbuks: ..put x=2 ...e^2 =1+2+4/2+ 8/6 +16/24 + . . .=7.333...
2^x =e^ln (2^x) =e^xln 2...cn u finish frm dia?.

i'l try wen i am bak 4rm wrk

@ Laplacian
I told you you'll get smurfed. This is the part where you click the Resign button.

Richiez: Nairaland Maths Quiz loading.....
All math Gurus should get ready...i'll be contacting some of the Generals who will serve as Quiz masters soon
cheers!!!

Good.

Given that.
X=e^3t .cos(3t)
y=e^3t .sin(3t)
show that
dy/dx = tan(3t + pi/4 )

smurfy: @ Laplacian
I told you you'll get smurfed. This is the part where you click the Resign button.

...u should know my last move was unintentional...

Laplacian:
...a little more time bro....@ most by sunda ur solution should b ready...

alright, i'm waitng

Alpha Maximus: ....Well that's nice and all but you still didn't respond to my e-mail request of that engineering math textbook you mentioned some time ago on this thread!!

pls can u resend the request

Richiez: Nairaland Maths Quiz loading.....
All math Gurus should get ready...i'll be contacting some of the Generals who will serve as Quiz masters soon
cheers!!!

..long waited 4 dis...master richiez....hope reward will attached?.to make it moltivating and interesting..

benbuks: ..long waited 4 dis...master richiez....hope reward will attached?.to make it moltivating and interesting..

hehehehe....sure sure at least something to cool the hot brains down! just stay glued to the thread while I unfold plans.

Richiez:
hehehehe....sure sure at least something to cool the hot brains down! just stay glued to the thread while I unfold plans.

...aright...

Laplacian:
...u should know my last move was unintentional...

Thought as much. Despite that, I had material advantage, and my constant attacks must have been paralyzing for you. Guess this is what happens when you play a pro like me

smurfy:

Thought as much. Despite that, I had material advantage, and my constant attacks must have been paralyzing for you. Guess this is what happens when you play a pro like me

lets c wat d next one 'll award u...am black

benbuks: Given that.
X=e^3t .cos(3t)
y=e^3t .sin(3t)
show that
dy/dx = tan(3t + pi/4 )

..no solution to this yet.

jauntee02: this angle is great on the whole circle of nairaland.!

Nice job mathematicians.

Just joining the house but find it highly interestng.

Someone should please get this done:

for some fixed number k,let W be a set of all real valued functns for which f(6)=k.
Are there any values of k for which W will be a subspace of F[a,b] with a=< 6 =<b?

W={f: A € R-->R: 6€A, f(6)=k}...
for W to be a subspace of F[a,b], you need first that A=[a,b] (if not, W will not be a subset of F[a,b]). And u need W to close under linear combinations...let f, g€W and u, v€R, now....
(uf+vg)6=uf(6)+vf(6)=(u+v)k, if k is not zero d above equation shos dat W is not closed, and hence, is not a subspace for all u and v....if k=0, in dis case W is a subspace of F[a,b] just when d domain of d functions of W is [a,b] and k=0....

Alpha Maximus: ....alright, I've done that...sent to your e-mail again. Hope you've seen it? Respondez S'I'll Vous Plait!!!

I've just sent it to you, jackpot and some others

For those who still haven't gotten a copy of the advanced engineering math textbook (soft copy), resend your request to richobiagba@gmail.com