cos^(5)x

cos^(-1)((3+5cos x)/(5+3cos x))=

int_0^(pi/2) cos^5x/(sin^5x+cos^5x)dx

The period of cos(5x//2) is

Using properties evaluate the following definite integrals int_0^(pi/2) cos^5x/(sin^5x+cos^5x) dx

Evaluate the following integrals: underset(0)overset(pi//2)int(cos^5x)/(sin^5x+Cos^5x)dx

Let [x] greatest integer le x . Define f : R to R by f(x) = cos(5x) cos [5x] + sin(5x) sin [5x] then period of f is ………..

cos 5x

lim_(x to 0) (cos5x-cos7x)/(cosx-cos5x)

Evaluate : underset(xrarr0)"lim"(cos5x-cos7x)/(cosx-cos5x)

Evaluate : lim_(xrarr0)(cos5x-cos7x)/(cosx-cos5x)