Posted by **anon** on Sunday, March 6, 2011 at 12:38am.

1.)Find dy/dx when y= Ln (sinh 2x)

my answer >> 2coth 2x.

2.)Find dy/dx when sinh 3y=cos 2x

A.-2 sin 2x

B.-2 sin 2x / sinh 3y

C.-2/3tan (2x/3y)

D.-2sin2x / 3 cosh 3yz...>> my answer.

2).Find the derivative of y=cos(x^2) with respect to x.

A.-sin (2x)

B.-2x sin (x^2)<<<< my answer.

C.-sin (2x) cos (x^2)

D.-2x sin (x^2) cos (x^2)

3).Find the derivative of y=sin^2(4x) cos (3x) with respect to x.

A. 8 sin (4x) cos (3x) - 3 sin^2 (4x) sin (3x)

B. 8 cos (4x) cos (3x) - 3 sin^2 (4x) sin (3x)

C. 8 sin (4x) cos (4x) cos (3x) - 3 sin^2 (4x) sin (3x)<<<<<my choice .not sure though

D. 8 sin (4x) cos (4x) cos (3x) - 3 sin^2 (4x) sin (3x) cos (3x)

4).Find the derivative of y=e^bx2 with respect to x

A.be^bx^2

B.bxe^bx^2

C.2 bxe^bx^2 <<<<< my choice

D.bx^2 e^bx^2

5).Calculate dy/dx when y=(x^2+2)e^4x as the derivative of a product,letting u=x^2+2 and v=e^4x. Which of the following is a step in your solution

A.du/dx=2x+2

B.du/dx=2x <<< my choice

C.dv/dx=4xe^3x

D.dv/dx=4xe^4x

## Answer this Question

## Related Questions

- Calculus - Find the derivatives of the function f(y)= sinh(sinh(7y).
- Maths - use the formula cos(x+iy)=cosxcosiy-sinxsiniy to find two imaginary ...
- maths 2 - The original question I had was write arcsin4 in the form a+ib. I ...
- Calculus - Graph the curve and find its exact length. x = e^t + e^-t, y = 5 - 2t...
- TRIG! - Posted by hayden on Monday, February 23, 2009 at 4:05pm. sin^6 x + cos^6...
- Calculus - Find the derivatives of the function f(t)=cosh^2(4t)-sinh^2(4t). ...
- Calculus 2 - Find the integral of sinh^2(x)dx.
- math - Can you please check my work. A particle is moving with the given data. ...
- Math - Calculus - The identity below is significant because it relates 3 ...
- Mathematics - Trigonometric Identities - Let y represent theta Prove: 1 + 1/tan^...