The value of `4^(-1)-8^(-1)`

The value of (7^(-1)-8^(-1))^(-1)-(3^(-1)-4^(-1))^(-1) is

11.The value of (7^(-1)-8^(-1))^(-1)-(3^(-1)-4^(-1))^(-1) is :

The value of 2^(1)*2^((1)/(2))*4^((1)/(4))*8^((1)/(8))......... utpo oo is equal to (i) 16(ii)8(iii)4(iv)2

Find the value of ( 8^-1 - 9^-1 )^-1 ÷ ( 4^-1 - 9^-1 )^-1

The value of [8^(-4/3)+2^(-2)]^(1/2)

The value of 2^((1)/(4)).4^((1)/(8)).8^((1)/(16)),,,,,,oo is equal to.

Find the value of (1)/(2)-(1)/(4)+(1)/(8)-(1)/(16)+.........oo A) (2)/(3) B) (1)/(3) C) 3 D) -(2)/(3)