1.

Let f(x)=∣∣∣∣∣sin2x−2+cos2xcos2x2+sin2xcos2xcos2xsin2xcos2x1+cos2x∣∣∣∣∣, x∈[0,π].Then the maximum value of f(x) is equal to

Answer» Let f(x)=

sin2x2+cos2xcos2x2+sin2xcos2xcos2xsin2xcos2x1+cos2x

, x[0,π].
Then the maximum value of f(x) is equal to


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