6*cos^(-1)(2x-1)=

2cos^(-1)x=cos^(-1)(2x^(2)-1)

cos^(-1)((x^(2))/(6)+sqrt(1-(x^(2))/(9))sqrt(1-(x^(2))/(4)))=cos^(-1)((x)/(3))-cos^(-1)((x)/(2)) hold for all x belonging to

Let L=lim_(x rarr1)(sin(6cos^(-1)x))/(sqrt(1-x^(2))) and M=lim_(x rarr1)(1-cos(6cos^(-1)x))/(1-x^(2)) .Then value of L+M is

Solve for x : i) cos(sin^(-1)x)=1/2 ii) tan^(-1)x=sin^(-1)1/sqrt(2) iii) sin^(-1)x-cos^(-1)x=pi/6

If x=sin^(-1)(a^6+1)+cos^(-1)(a^4+1)-tan^(-1)(a^2+1),a in R , then the value of sec^2x is_______

If x=sin^(-1)(a^6+1)+cos^(-1)(a^4+1)-tan^(-1)(a^2+1),a in R , then the value of sec^2x is_______

If x=sin^(-1)(a^6+1)+cos^(-1)(a^4+1)-tan^(-1)(a^2+1),a in R , then the value of sec^2x is_______

If x=sin^(-1)(a^6+1)+cos^(-1)(a^4+1)-tan^(-1)(a^2+1),a in R , then the value of sec^2x is_______

If sin ^(-1) x + cos ^(-1) 2x = (pi)/(6), then the value of x is

If the sum of all the solutions of the equation 8 cosx.(cos(pi/6+x)cos(pi/6-x)-1/2)=1 in [0,pi] is k pi then k is equal to