What is the principal value range of the inverse cosine function ?

MATHEMATICS · Single correct · CBSE · Mathematics · Inverse Trigonometric Functions · Inverse Trigonometric Functions

Problem

What is the principal value range of the inverse cosine function

y = \arccos x

? (a)

[0,\tfrac{\pi}{2}]

(b)

[0,\pi]

(c)

(0,\pi)

(d)

[-\tfrac{\pi}{2},\tfrac{\pi}{2}]