Thursday

July 24, 2014

July 24, 2014

Posted by **Julie** on Thursday, April 12, 2012 at 12:27am.

a) y = (x² + x - 1)Sin²x

b) y = (x² + 1)/Sin²x

- Calculus grade 12 -
**Steve**, Thursday, April 12, 2012 at 10:50amchain rule:

d/dx sin^2 x = 2(sinx)(cosx) = sin2x

a)

y = (x^2+x-1)sin^2 x

y' = (2x+1)sin^2 x + (x^2+x-1)sin2x

b)

y = (x^2+1)/sin^2 x

y = (2x*sin^2 x - (x^2+1)*2*sinx*cosx]/sin^4 x

= [2x*sinx - (x^2+1)*cosx]/sin^3 x

- Calculus grade 12 -
**Julie**, Thursday, April 12, 2012 at 11:53amThank you Steve

**Related Questions**

Calculus grade 12 - Determine the derivative of each function A1) y = e^x(Sin²x...

calculus - Could someone check my reasoning? thanx Find the derivative of the ...

Calculus 12th grade (double check my work please) - 1.)Find dy/dx when y= Ln (...

calculus - Determine all the absolute extreme values for the function f(x,y) = ...

Quantum mechanics, eigenfunctions! - Determine if the function sin(x)*e^(ax) ...

Calculus - Consider the function f(x)=sin(1/x) Find a sequence of x-values that ...

Calculus Help and Check - find the derivative of the function integral from cosx...

Calculus - Consider the function f(x)=sin(1/x) Find a sequence of x-values that ...

Calculus - Consider the function f(x)=sin(1/x) Find a sequence of x-values that ...

math - Eliminate the parameter (What does that mean?) and write a rectangular ...