vithihoaithu8112 vithihoaithu8112

03-09-2021
Mathematics

contestada

Cho f(x, y) = x cos(xy). Tính f”xy(π2, −1)

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purnimaghartichhetri purnimaghartichhetri

03-09-2021

because the cos(xu

y) so the formula have to be cos

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