Question

find the principal value of sin^-1(1/2) + cos-1^(-1/2) - tan^-1(∞)

Please kindly give explaination​

Answer 1

Answer is π/3.

Step-by-step explanation:

= π/6 + [π-π/3] - π/2

= [π-π/3] - π/3

= [2π/3] - π/3

= π/3 [2-1]

= π/3