Evaluate cos [tan -¹(1) - cos-¹(-√3/2)]. (1) If cos x =

Last updated: 8/7/2022

Evaluate cos [tan -¹(1) - cos-¹(-√3/2)]. (1) If cos x = -1/2 with in Qll then find sin(x/2). (2) Solve for 0 ≤ θ < 2π : 4sinx - 2cscx = 0 (3)Solve for 0° < θ <360° : 2sinx + cotx - cscx =0