( - 1 a + - 1 a) = ( - 1 a + 2 - - 1 a ) = 2 = 0

Inverse Trigonometric Functions — Class 12 Maths Solution

ncert exercise SA NCERT Ex. 2.2, Q. 12 , Page 48

Question

$\cot ({\tan ^{ - 1}}a + {\cot ^{ - 1}}a)$

Step-by-step Solution

$\cot ({\tan ^{ - 1}}a + {\cot ^{ - 1}}a) = \cot \left( {{{\tan }^{ - 1}}a + \frac{\pi }{2} - {{\tan }^{ - 1}}a} \right) = \cot \frac{\pi }{2} = 0$

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