Match List I with List II and select the correct answer using the codes given below the lists:

Options

A. `(1/y^(2) cos (tan^(-1)y)+y sin(tan^(-1)y)/(cot (sin^(-1)y)+tan(sin^(-1)y))^(2)+y^(4))^(1//2)" takes value" " 1/2 sqrt(5/3)`
B. If `cos x+cos y+cos z=0" "sqrt2`
C. If `cos(pi/4-x) cos 2x+sin x sin 2x secx=cos x sin 2x sec x +cos (pi/4-x)` cos 2x then possible value of sec x is " " `1/2`
D. S. If `cot(sin^(-1) sqrt(1-x^(2)))=sin(tan^(-1) (xsqrt6)) " "1`

Answer

A, B, C, D