Write the principal value of cos 1(1/2) 2 sin 1( 1/2) - Maths - Inverse Trigonometric Functions

Question

Write the principal value of cos−1(1/2) − 2
sin−1(−1/2)?

Tejaswini J · Accepted Answer

Dear student,
<img alt="" src=
"https://www%20sarthaks%20com/?qa=blob&qa_blobid=1545856402412150548">
[Note: Principal value branches of sin x and cos x are
[-π/2,π/2] and [0,π] respectively ]​

Regards

Write the principal value of cos−1(1/2) − 2 sin−1(−1/2)?

Write the principal value of cos⁻¹(1/2) − 2 sin⁻¹(−1/2)?