" If "x>0cos^(-1)((12)/(x))=(pi)/(2)-cos^(-1)((16)/(x))" then "x" is "

If x>0 and cos^(-1)((12)/(x))=(pi)/(2)-cos^(-1)((16)/(x)) then x=

If x>0,cos^(-1)((3)/(x))=(pi)/(2)-cos^(-1)((4)/(x)) then x equals

cos^(-1) ""(5)/(x)+cos^(-1) ""(12)/(x)=(pi)/(2)

If |x|<=1 then prove that cos^(-1)(-x)=pi-cos^(-1)x

tan((pi)/(4)+(1)/(2)cos^(-1)x)+tan((pi)/(4)-(1)/(2)cos^(-1)x),x!=0 is equal to

Is cos^(-1) (-x) = pi - cos^(-1) x , x in [-1,1] ?

If 0

The value of x satisfying the equation (sin^(-1)x)^(3)-(cos^(-1)x)^(3)+(sin^(-1)x)(cos^(-1)x)(sin^(-1)x-cos^(-1)x)=(pi^(3))/(16) is :

The value of x satisfying the equation (sin^(-1)x)^(3)-(cos^(-1)x)^(3)+(sin^(-1)x)(cos^(-1)x)(sin^(-1)x-cos^(-1)x)=(pi^(3))/(16) is : (a) "cos"(pi)/(5) (b) "cos"(pi)/(4) (c) "cos"(pi)/(8) (d) "cos"(pi)/(12)

tan((pi)/(4)+(1)/(2)cos^(-1)x)+tan((pi)/(4)-(1)/(2)cos^(-1)x),x!=0 is equal to x( b) 2x( c) (2)/(x) (d) none of these