Calculus
posted by Rachel .
Use fundamental theorem of calculus:
Int(pi/2_pi) of e^(sin(q))*cos(q)dq

usubstitute u=sin(q). du = cos(q) dq.
from u=sin(pi)=0 to u=sin(2pi)=0
int(e^u du) from 0 to 0
=e^0e^0
=0
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