Question

If tan^-1 x – tan^-1 y = tan^-1 A, then A is equal to ____________.

विकल्प

• x - y

• x + y

• `("x" - "y")/(1 + "xy")`

• `("x" + "y")/(1 - "xy")`

Answer 1

If tan^-1 x – tan^-1 y = tan^-1 A, then A is equal to `underline(("x" - "y")/(1 + "xy"))`.