Inverse Trigonometric Functions — Class 12 Maths Solution

exemplar fill FillBlank NCERT,Ex.2.3,Q.38,Page.40
Question

The principal value of ${\cos ^{ - 1}}\left( { - \frac{1}{2}} \right)$ is ………..

Step-by-step Solution

$0 \le {\cos ^{ - 1}}x \le \pi$
${\cos ^{ - 1}}\left( { - \frac{1}{2}} \right) = {\cos ^{ - 1}}\left( {\cos \frac{{2\pi }}{3}} \right) = \frac{{2\pi }}{3}$

← All Inverse Trigonometric Functions solutions Practice tests →

NCERT & Exemplar solution for CBSE Class 12 Mathematics, Inverse Trigonometric Functions. Curated by Sachin Sharma. Free for all students.