" 7."int_(0)^( pi)cos xdx

int_(0)^( pi)cos^(5)xdx

" 4."int_(0)^( pi)x cos xdx=-2

int_(0)^(2 pi)cos^(7)xdx

int_(0)^(2 pi)cos^(4)xdx

int_(0)^( pi)cos^(3)xdx=

STATEMENT 1: int_(0)^( pi)sqrt(1-sin^(2)xdx)0 STATEMENT 2:int_(0)^( pi)cos xdx=0

Evaluate the integration int_(0)^( pi/2) cos xdx

" (3) "int_(x=0)^(pi/2)cos xdx

If f:[0,pi]rarr R is continuous and int_(0)^( pi)f(x)sin xdx=int_(0)^( pi)f(x)cos xdx=0 then the number of roots of f(x) in (0,pi) is ...

int_0^(pi/2) cos^5xdx