The value of (2 ⁻¹ x+ ⁻¹ x ) at x= 1 5 is

Step-by-step solution

aligned & [2 ⁻¹ x+ ⁻¹ x ] & = [ ⁻¹ x+ ⁻¹ x+ ⁻¹ x ] & = [ ⁻¹ x+ / 2 ]=- [ ⁻¹ x ] & =- [ ⁻¹ 1-x^2 ]=- 1-x^2 & =- 1- ( 1 5 )^2 =- 24 25 =- 2 6 5 & aligned