range of function f(x) = cos (K sinx) is [-1, 1], then positive integral value of K can be -
(A) 1
(B) 2
(C) 5
(D) 4

range of function f(x) = cos (K sinx) is [-1, 1], then positive integral value of K can be - (A) 1 (B) 2 (C) 5 (D) 4 I-tar. of the function f(x) cos (K sinx) is I—I, then the pcßitive integral value of K Can -