" When simplified "(x^(-1)+y^(-1))^(-1)" is equal to "

Simplify (x^(-2/3)y^(-1/2))^2

tan^(-1)x+tan^(-1)y is equal to

If x, y, z are all different and not equal to zero and |{:(1+x,,1,,1),(1,,1+y,,1),(1,,1,,1+z):}| = 0 then the value of x^(-1) + y^(-1) + z^(-1) is equal to

If x = (2)/(3) and y = (3)/(4) , then a rational number (x-y)^(-1)+(x^(-1)- y^(-1)) is equal to

If x = (2)/(3) and y = (3)/(4), then a rational number (x – y) ^(-1) + (x ^(-1) – y ^(-1)) is equal to

Simplify (4x)/(x^(2)-1)-(x+1)/(x-1)

What is the expression (x+y)^(-1) (x^(-1) +y^(-1)) (xy^(-1) +x^(-1)y)^(-1) equal to:

If y^((1)/(n))+y^(-(1)/(n))=2x then (x^(2)-1)y_(2)+xy_(1) is equal to

Simplify (2y - 1) (3-4y)