`(1/2)^[-1/2]=?`

the value of sqrt(1(1)/(2)-[1(1)/(2)-1(1)/(2)+(1(1)/(2)-1(1)/(2)-1(1)/(4))]) is

If (1//2^1)+(1//2^2)+(1//2^3).....+(1//2^10)= 1//k , then what is the value of k? यदि (1//2^1)+(1//2^2)+(1//2^3).....+(1//2^10)= 1//k है, तो k का मान क्या है?

A=[(1,2),(2,1)], then adjoint of A is equal to (A) [(1,-2),(-2,1)] (B) [(2,1),(2,1)] (C) [(1,-2),(-2,1)] (D) [(-1,2),(2,-1)]

The value of the ratio ((1+1/(2^2)+1/(3^2)+1/(4^2)+......))/((1-1/(2^2)+1/(3^2)-1/(4^2)+.......)) is

tan[1/2"Sin"^(-1)(2a)/(1+a^(2))+1/2"Cos"^(-1)(1-a^(2))/(1+a^(2))]=

Find the value of (1-1/(2^(2)))(1-1/(3^(2)))(1-1/(4^(2)))(1-1/(5^(2)))…….(1-1/(9^(2)))(1-1/(10^(2)))

tan [(1) / (2) sin ^ (- 1) ((2a) / (1 + a ^ (2))) + (1) / (2) cos ^ (- 1) ((1-a ^ (2)) / (1 + a ^ (2)))] =