1. ## Trig Reduction Integral

How do I solve this:
(Latex keeps giving me errors, so forgive the crudeness here)

$\int$(cos^2(sint))(sint)

I know this problem is screaming substitution, but I cannot see what to do any help would be appreciated. Thanks.

-Warren

2. Originally Posted by Warrenx
How do I solve this:
(Latex keeps giving me errors, so forgive the crudeness here)
$\int$(cos^2(sint))(sint)
I know this problem is screaming substitution, but I cannot see what to do any help would be appreciated.
If it were $\int {\cos ^2 (\sin (t))(\cos (t))dt}$ then a simple substitution is ideal.
But I don't think it helps here.
But I am thinking.

3. Wolfram Alpha didn't give me any inspiration. Is that the whole problem?

4. In exercises 21-54 use the techniques and reduction formulas necessary to evaluate the integral.

44. int{ cos^2(sint)(sint)}

5. Originally Posted by Warrenx
In exercises 21-54 use the techniques and reduction formulas necessary to evaluate the integral.
44. int{ cos^2(sint)(sint)}
I would wager that is a careless typo.
As far as I can see, as well as Wolfram Alpha, there is no elementary primitive form.

6. ok, I will contact my professor to see what he says, more than likely it is a typo, but will report back with any findings. Thanks for your time gentlemen.