The range of a∈R for which the function f(x)=(4a−3)(x+loge5)+2(a−7)cot(2x)sin2(2x),x=2nπ,n∈N, has critical points, is :
Held on 16 Mar 2021 · Verified 6 Jul 2026.
(−3,1)
[−34,2]
[1,∞)
(−∞,−1]
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