Monday

January 26, 2015

January 26, 2015

Posted by **Jane** on Wednesday, January 7, 2009 at 12:33pm.

Find dy/dx & d^2y/dx^2

y^2 - x^2 = 2

is the answer dy/dx=x/y; d^2y/dx^2=

y^2-x^2/y^2

- Calculus -
**Reiny**, Wednesday, January 7, 2009 at 1:05pm2y(dy/dx) - 2x = 0

dy/dx = 2x/(2y) = x/y

y'' = (y(1) - x(y'))/y^2

= (y - x(x/y))/y^2

= (y^2 - x^2)/y^3

you had y^2 at the bottom of your y''

did you notice that there was a y in the denominator of your top?

**Answer this Question**

**Related Questions**

Calculus 1 Implicit differentiation - Help please help me understand what i am ...

calculus; implicit differentiation - Use implicit differentiation to find the ...

Calculus: implicit differentiation - Find dy/dx by implicit differentiation 1. x...

math - If cos(3 x)−4 x e^2 y=0, find [ dy/dx] using implicit differentiation...

Calculus - I am having trouble differentiating x^2 + 2lny = y (solving for dy/dx...

Calculus 1 - implicit differentiation - I do not understand implicit ...

Calculus 1 - implicit differentiation - I do not understand implicit ...

Calculus - Here's another one - I think that I am starting to understand it. ...

Calculus Help and Check - Find dy/dx by implicit differentiation. x^5(x + y) = ...

Calculus - How do you use imlicit differentiation to differentiate e^(xy)? I ...