AP

MATHEMATICS · Single correct · AP · Calculus AB · Differentiation: Definition and Fundamental Properties · Differentiation: Definition and Fundamental Properties

Problem

Calculate ddx[x2tan⁡x+sin⁡xx+1]\dfrac{d}{dx}\left[\dfrac{x^2\tan x+\sin x}{x+1}\right]. (a) 2xtan⁡x+x2sec⁡2x+cos⁡xx+1\dfrac{2x\tan x + x^2\sec^2 x + \cos x}{x+1} (b) (2xtan⁡x+x2sec⁡x+cos⁡x)(x+1)−(x2tan⁡x+sin⁡x)(x+1)2\dfrac{\bigl(2x\tan x + x^2\sec x + \cos x\bigr)(x+1) - \bigl(x^2\tan x + \sin x\bigr)}{(x+1)^2} (c) (2xtan⁡x+x2sec⁡2x+cos⁡x)(x+1)−(x2tan⁡x+sin⁡x)(x+1)2\dfrac{\bigl(2x\tan x + x^2\sec^2 x + \cos x\bigr)(x+1) - \bigl(x^2\tan x + \sin x\bigr)}{(x+1)^2} (d) (2xtan⁡x+x2sec⁡2x)(x+1)−(x2tan⁡x+sin⁡x)(x+1)2\dfrac{\bigl(2x\tan x + x^2\sec^2 x\bigr)(x+1) - \bigl(x^2\tan x + \sin x\bigr)}{(x+1)^2}

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