manarsadi6
31.08.2019 •
Mathematics
If 5 x 2 − 2 x y + 7 y 2 = 0 t h e n d y d x =
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Ответ:
df/dx= 10-2y, df/dy= -2y+14,
then second deriv is df/dxdy=-2
df/dydx=0
Ответ: