Posted by **steve ** on Thursday, February 10, 2011 at 8:16pm.

derivative of;

((1+x^2)^2)sin(2x)

- calc a -
**Reiny**, Thursday, February 10, 2011 at 8:21pm
use the product rule

- calc a -
**steve **, Thursday, February 10, 2011 at 8:35pm
i got (1+x^2)^2(2cos(2x)+sin(2x)(4x(1+x^2)

is that right?

- calc a -
**Reiny**, Thursday, February 10, 2011 at 8:41pm
yes, correct

you might want to consider factoring it a bit more

(I see 2(1+x^2) as a common factor)

- calc a -
**steve **, Thursday, February 10, 2011 at 9:10pm
thanks you so much. that really helped alot

## Answer This Question

## Related Questions

- Calc - Find the derivative of a) y=cos (x/2) b) yx-3x^2 +6 = y^4 + x a) -sin (x/...
- 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 (...
- calc - i did this problem and it isn't working out, so i think i'm either making...
- AP CALC - derivative of y= x^2 sin x
- Calc - find the derivative f(x)= e^-3x x sin(4x)
- Calc - What is the derivative of 4^[sin(pi*x)]? And how do you go about solving ...
- AP Calc - How do you find the derivative of y=sin(x)*(sinx+cosx)
- Derivative - Can you help me find the derivative of y= cos(x)/1+sin(x).. the / ...
- Quantum mechanics, eigenfunctions! - Determine if the function sin(x)*e^(ax) ...

More Related Questions