Question 26

If 3tan–1 x + cot–1 x = π, then x equals

• (A)0
• (B)1
• (C)–1
• (D).   33   The value of sin–1  cos   is 5   23.  3π –7π π –π (A) (B) (C) (D) 5 5 10 10 38 MATHEMATICS