1. Tìm đạo hàm riêng của các hàm số sau:
a) f(x, y)=3x²+4xy+sin²(xy)
b) f(x, y)=(x+3y²) . e^(...
Mathematics, 26.07.2021 14:50 aaliyahrice02
1. Tìm đạo hàm riêng của các hàm số sau:
a) f(x, y)=3x²+4xy+sin²(xy)
b) f(x, y)=(x+3y²) . e^(4xy)
2. Cho hàm số: f(x, y)=4x³+2x²y²+(3x+y²).e^x tìm df(x, y) , df(0,1) , d²f(0,-1)
3. Tìm z''xx , z''yy và z''xy trong các trường hợp sau:
a) z= 4x²y + x / (y²+1)
b) z= x²+y²+6x-8xy²+4y-6
c) z= (2x²+y³) . e^3x
Answers: 2
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