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Maths Help! :(


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Hello peoples.

I'm stumped on a couple of questions and my notes aren't being the kindest for helping me...

"Find the first derivative of the implicit function y(X) at the point (2,-1) given

2x^2 + x^3y + y^2 - 1 = 0

?(

The other one was

"Calculate the derivative of y = e^ -x + sin(x+3) + 1/(x-2)

?(

:down:

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Hello peoples.

I'm stumped on a couple of questions and my notes aren't being the kindest for helping me...

"Find the first derivative of the implicit function y(X) at the point (2,-1) given

2x^2 + x^3y + y^2 - 1 = 0

?(

The other one was

"Calculate the derivative of y = e^ -x + sin(x+3) + 1/(x-2)

?(

:down:

Ok, I will take a stab

1st) Esp guitar

2nd) Being bald ponds the earth.

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I can't wait til you get that Yamaha acoustic - I'm going to take a plop in the soundhole.

:swearing:

Hehe, aye.

Anyway, good luck with finding the answer. I would help but my brain is art biased. My folks even employed a maths tutor who told me that "I was useless at maths". Ach well, I bet she couldn't take a photo for shit.

Anyway, bed time, I will stop hijacking your thread:up: Nite nite man

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Calculate the derivative of y = e^ -x + sin(x+3) + 1/(x-2)

is that not dy/dx= cos(x+3)-e^-x-(x-2)^-2

It's just a simple matter of finding the derivatives of the three separate terms and adding them.

Bear in mind it's been a while.

edit: you need the chain rule for finding the derivative of e^-x, as in d/dx(e^u)=e^u.du/dx where u=-x

Maybe not so simple.

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Hello peoples.

I'm stumped on a couple of questions and my notes aren't being the kindest for helping me...

"Find the first derivative of the implicit function y(X) at the point (2,-1) given

2x^2 + x^3y + y^2 - 1 = 0

?(

The other one was

"Calculate the derivative of y = e^ -x + sin(x+3) + 1/(x-2)

?(

:down:

It's amazing how much I've forgotten since College. I can't even be arsed having a stab at it for fear of failure.

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Hello peoples.

I'm stumped on a couple of questions and my notes aren't being the kindest for helping me...

"Find the first derivative of the implicit function y(X) at the point (2,-1) given

2x^2 + x^3y + y^2 - 1 = 0

?(

The other one was

"Calculate the derivative of y = e^ -x + sin(x+3) + 1/(x-2)

?(

:down:

...and just how, exactly, is all that maths pish going to help your guitar playing?

Just like the last gadge, I've forgotten soooo much since I left Uni. Anyway, that's what I've got staff for - to do the work, freeing me up to take the credit!

Sweet!

ps - Taking a shite in Hog's new 'coostic, won't help either.

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...and just how, exactly, is all that maths pish going to help your guitar playing?

Just like the last gadge, I've forgotten soooo much since I left Uni. Anyway, that's what I've got staff for - to do the work, freeing me up to take the credit!

Sweet!

ps - Taking a shite in Hog's new 'coostic, won't help either.

All is good - those type of questions didn't appear in this year's paper. I had it yesterday. All went pretty well - definitely passed :up:

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