For all, `x in[0,(pi)/(2)]`,the minimum value of `cos(cos x)` A) `0` B) `cos1`C) `-cos1`D)`1`

If A,B,C are the angles of triangle ABC, then the minimum value of |{:(-1,cos C , cos B),(cos C , -1, cos A ) , (cos B , cos A , -1):}| is equal to :

If sin^(-1)x in (0, (pi)/(2)) , then the value of tan((cos^(-1)(sin(cos^(-1)x))+sin^(-1)(cos(sin^(-1)x)))/(2)) is :

lim_(x to 0) (cos 2x-1)/(cos x-1)

If sinA+sin^2A=1, then the value of cos^2A+cos^4A is (a)2 (b) 1 (c) -2 (d) 0

Find the maximum and minimum values of f(x)=sinx+1/2cos2x in [0,\ pi/2] .

Write the value of cos1^0+cos2^0+cos3^0++cos 180^0dot

The value of int_(0)^(pi//2) (cos3x+1)/(2 cos x-1) dx is

If [cot^(-1)x]+[cos^(-1)x]=0 , where [] denotes the greatest integer functions, then the complete set of values of x is (cos1,1) (b) cos1,cos1) (cot1,1) (d) none of these

Find the maximum and minimum value of f(x)=sinx+1/2cos2xin[0,pi/2]dot

If a sin x+b cos(x+theta)+b cos(x-theta)=d, then the minimum value of |cos theta| is equal to