f(x)=sinx+21cos2x in [0,2π]
(A) f′(x)=cosx−sin2x
(B) The critical points of the function are x=6π and x=2π
(C) The minimum value of the function is 2
(D) The maximum value of the function is 43
Choose the correct answer from the options given below :
Held on 16 May 2024 · Verified 13 Jul 2026.
(A), (B) and (D) only
(A), (B) and (C) only
(A), (B), (C) and (D)
(B), (C) and (D) only
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