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Bedakan sexx dengan prinsip pertama. – Blog.artikelkeren.com

Bedakan sexx dengan prinsip pertama.

Penyelesaian:

Mari kita pertimbangkan

detik x = 1/cos x

Dengan aturan hasil bagi turunan dari secx = 1/cosx

(frac{frac{d}{dx}times 1 – frac{d}{dx} cos x times 1}{left ( cosx right )^{2}})

Sederhanakan persamaan yang kita peroleh

(frac{0 times cosx – frac{d}{dx}cos x times 1}{left ( cosx right )^{2}})

(frac{sin x}{left ( cosxtimes cosx right )})

(left ( frac{sin x}{cosx} kanan )(frac{1}{cosx}))

tanx. secx

10

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