Posted by Mary on .
How do you integrate the function  > sinx (4^cosx) from 0 to pi/2
I did "usubstitution" to make it the integral from 1 to 0 of 4^u but then i don 't know where to go from there! Thank you

Calculus II 
bobpursley,
INT 4^u du
what is the integral of a^u du?
Ans: a^u / lna
check that.