1.

Let ∣∣∣2secx3tanxextan−1x∣∣∣=A+Bx+Cx2+⋯(A,B,C are real constants), then which of the following(s) is/are true?

Answer»

Let 2secx3tanxextan1x=A+Bx+Cx2+(A,B,C are real constants), then which of the following(s) is/are true?



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