Wednesday

September 3, 2014

September 3, 2014

Posted by **DK** on Friday, May 25, 2012 at 9:24am.

- calculus -
**Steve**, Friday, May 25, 2012 at 10:59amy = ln((e^(-2x))(cos4x))

= ln(e^-2x) + ln(cos 4x)

= -2x + ln(cos 4x)

y' = -2 - 4sin4x/cos4x

= -2 - 4tan4x

**Answer this Question**

**Related Questions**

calculus - y = (ln x)^(cos4x) Use logarithmic differentiation to find the ...

Pre-Calculus - Find all solutions to the equation in the interval [0, 2pi) cos4x...

Calculus--> bobpursley - How do you get m=0? from taking the second ...

Calculus - cos4x^2 + sin4x^2?

trig - Prove that cos4x=8cos^4x-8cos^2x+1 so I'm guessing you begin with the ...

Calculus - derivatives - Okay, I want to find the derivative of (x^x)^(x^x)... ...

calculus - wat is the ans of this solutions? y=sin^4x cos4x? ^

calculus - solution for limit as delta x approaches 0 (1-cos4x/1-cos2x)

Calculus - I need to find the second derivative of y=x(x-1)^1/2. I found the ...

Maths Calculus Derivative Integral - Urgent Please - Use 2nd Fundamental Theorem...