int cos x*cos2x*cos3x

int cos2x*cos4x*cos6xdx

int sin x*cos x*cos2x*cos4x*cos8x*cos16xdx=

int cos x cos 2x cos 3x dx=

If int cos x cos 2x cos 3x dx = A_(1)sin 2x + A_(2) sin 4x + A_(3) sin 6x + C then

Prove : int cos x cos 2 x cos 3 x dx = 1/4 ( x+ (sin 2x)/2 + (sin 4x)/4 + (sin6x)/6 ) + c

int cos x cos3x*dx

int_(0)^( pi)sqrt((cos x+cos2x+cos3x)^(2)+(sin x+sin2x+sin3x)^(2))dx is equal to ((pi)/(k)+w), where k and w are positive integers,find the value of (k^(2)+w^(2))

Evaluate: int sin x cos x cos2x cos4x cos8xdx

sin_( if )x+sin2x+sin3x=cos x+cos2x+cos3x