Tìm đạo hàm f(x,y,z) =x^2*e^y+xy^3z^2 tại P(-1,0,1) theo hướng vecto pháp tuyến đơn vị chính là hàm vecto R(t)= (1+sint)i tại t=0

Trevor Orr asked Nov 7, 2022

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Trevor Orr asked Nov 7, 2022

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ha ano dawwwwwwwwwwwwwww

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