Recent content by hpnhpluv

Ahh, I see now! I got it! Thank you so incredibly much for your help! And you are right, I am tired. It's been a long week...

Ok, so I got the denominator to be cos^2(x), which I know is correct. My numerator is (1+sinx)*(1+sinx)^(1/2). I know this has to equal sin(x). I just don't see how... Thank you for being so patient with me. :smile:

By completing the square? I'm not quite sure how to do that in this case...

I know 1/2ln ((1+sinx)/(1-sinx)) is equivalent to saying ln ((1+sinx)/(1-sinx))^1/2...

When I fixed my solution, I got 1/2*ln((1+sinx)/(1-sinx)). Does that look right?

Oh, didn't see your last reply. Thanks. :)

Ok...so the integral in question should have been -ln(1-u)?

I still don't see it...

Homework Statement Derive a formula for the antiderivative of sec x using the identity that sec x= cos x/ (1-sin^2x). Use a substitution for sin x and then partial fractions. Then multiply the solution by (1+sin x)/ (1+sin x) to obtain the more familiar formula for the antiderivative...

Homework Statement Use the work-energy theorem to solve. A branch falls from the top of a 95 m tall tree, starting from rest. How fast is it moving when it reaches the ground? Neglect air resistance. Homework Equations work-energy theorem:w_total=K_2-K_1 In this problem, K_1 is 0 since it is...