Thursday
April 17, 2014

Homework Help: Calculus

Posted by CMM on Tuesday, March 8, 2011 at 10:16pm.

Evaluate the integral.
S= integral sign
I= absolute value

S ((cos x)/(2 + sin x))dx

Not sure if I'm doing this right:

u= 2 + sin x
du= 0 + cos x dx

= S du/u = ln IuI + C
= ln I 2 + sin x I + C
= ln (2 + sin x) + C

Another problem:

S ((sin (ln x))/(x)) dx

I don't even know what to put as u and du?

Please help with explanations.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Integral - That's the same as the integral of sin^2 x dx. Use integration by ...
Calculus - I have two questions, because I'm preparing for a math test on monday...
Integral Help - I need to find the integral of (sin x)/ cos^3 x I let u= cos x, ...
Calc. - Evaluate the definite integral. S b= sqrt(Pi) a= 0 xcos(x^2)dx I'm not ...
Math integrals - What is the indefinite integral of ∫ [sin (π/x)]/ x^...
Calculus - Evaluate the following integral integral 1 = a and b = 4 of sinx dx/(...
Calculus - Hello, I have some calculus homework that I can't seem to get started...
trig integration - s- integral endpoints are 0 and pi/2 i need to find the ...
Calculus II/III - A. Find the integral of the following function. Integral of (x...
calc - d/dx integral from o to x of function cos(2*pi*x) du is first i do the ...

Search
Members