1.

Let f(x)=7tan8x+7tan6x−3tan4x−3tan2x for all x∈(−π2,π2). Then the correct expression(s) is(are)

Answer»

Let f(x)=7tan8x+7tan6x3tan4x3tan2x for all x(π2,π2). Then the correct expression(s) is(are)



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