Prove that for positive integers n 1, x tan x 1 2

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Prove that for positive integers n ≠ 1,

x tan x п — 1 п — 2 sec

Integrate by parts with u = secn - 2 x and dv = sec2 x dx.

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Calculus Early Transcendentals

ISBN: 978-0321947345

2nd edition

Authors: William L. Briggs, Lyle Cochran, Bernard Gillett

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