`f : R to R : f (x) = cos x ` is

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 ………..

f : R to R : f (x) =x^(2) is

f : R rarr R , f(x) = cos x and g : R rarr R , g(x) = 3x^(2) then find the composite functions gof and fog.

If f : R to R , then f (x) =|x| is

Define f : R to R by f(x) = 4 cos^(4)((x-pi)/(4pi^(2))) - 2 cos((x-pi)/(2pi^(2))) AA x in R If the period of f is kpi^(3) , then k = ……………..

If f:R rarr R where f(x)=ax+cos x is an invertible function,then

If f : R rarr R , f(x) = sin^(2) x + cos^(2) x , then f is