Let `P(x)=sqrt(( cosx +cos2x+cos3x)^2+ (sin x + sin 2x+sin3x)^2)` then P(x) is equal to

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))

cosx - sin3x = cos2x

Evaluate int_(0)^(pi)sqrt((cosx+cos2x+cos3x)^(2)+(sinx+sin2x+sin3x)^(2))dx

Evaluate int_(0)^(pi)sqrt((cosx+cos2x+cos3x)^(2)+(sinx+sin2x+sin3x)^(2))dx

What is (cos7x-cos3x)/(sin7x-2sin5x+sin3x) equal to?

What is (cos7x-cos3x)/(sin7x-2sin5x+sin3x) equal to ?

If 3cos x+2cos3x=cos y3sin x+2sin3x=sin y, then cos2x equals

int(3cos3x-2sin2x)/(cos2x+sin3x)dx

If sin x - 3 sin 2x + sin 3x = cos x - 3 cos 2x + cos 3x then x =