Question

please give me right answers with full method​

Answer 1

Answer:

45°

Step-by-step explanation:

tan⁻¹[2cos(2*30°)]       /*Since sin⁻¹(1/2)=30° */

tan⁻¹[2cos60°]

tan⁻¹[2*(1/2)]            /*Since cos60 = 1/2  */

tan⁻¹[1]

45°                         /*Since tan⁻¹[1] = 45°  */