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Alexandra [31]
3 years ago
7

Cho hàm số f(x,y)= x +√(1+x^2+y^2). Tính f'(x,y)=?

Mathematics
1 answer:
SVEN [57.7K]3 years ago
6 0
Jdkdjdbdkdodndkspsosjsnsjskxo
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Tom Thomas took tennis lessons. He traveled 12 miles one way at an average cost of $0.42 per mile. His racket cost $94, balls co
Furkat [3]
Racket : 94
balls : 12.50
warm ups : 34
shorts : 19.95
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total with tax : 204.95 + .05(204.95) = 204.95 + 10.25 = 215.20

20 per lesson for 12 lessons : 20 * 12 = 240
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for a total of : 215.20 + 250.08 = 465.28 <==
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