# The minimum value of cos(cosx) is

Q: The minimum value of cos(cosx) is

(A) 0

(B) –cos1

(C) cos1

(D) –1

Sol. cosx varies from –1 to 1 for all real x.

Thus cos(cosx) varies from cos1 to cos0

⇒ minimum value of cos(cosx) is cos1.

Hence (C) is the correct answer.