we know that the range of the principal value branch of sin 7 5 sin Example 2 Find the principal value of cot cot 1 2 Solution Let cot Therefore principal alue of sin 2 57 732 3 1 sin 7 sec 3 cot y 2 3 Fy Then 1 77 33 A T 11 tan 1 cos 13 If sin x y then A 0 y n cot Co 57 We know that the range of principal value branch of cot is 0 and er Find the principal values of the following 9 4 tan 3 DE OU Hence principal value of cot 10 cosec 2 Find the values of the following 1 2 2 cos 5 cos B EXERCISE 2 1 cot x 7 cot 7 3 8 cot 3 C 0 y 14 tan 3 sec 2 is equal to sin Rationalised 2023 24 TU 3 3 2 3 1 2 D 3 cosec 2 6 tan 1 9 cos B Isys1 2 TU INVERSE TRIGONOMETRIC FUNCTIONS 27 12 cos 2 3 V CORT EN T 22 2 11 12 2 sin 2 3 and 1 ublished