If y= ⁻¹ ( x+1 x-1 )+ ⁻¹ ( x-1 x+1 ) , then d y d x is equal to

Step-by-step solution

aligned & y= ⁻¹ ( x+1 x-1 )+ ⁻¹ ( x-1 x+1 ) & = ⁻¹ ( x-1 x+1 )+ ⁻¹ ( x-1 x+1 ) aligned aligned & = 2 ( ⁻¹ x + ⁻¹ x = 2 ) & dy dx =0 aligned