Asked by ireallyneedhelp

Use implicit differentiation to find dy/dx:

a) xrooty-ye^x=1
b) sinxy + ln y=x
Answered by lisa
x^2+3xy+2y^2=7
Answered by Carina
Y : x^2 -3xy +2y^2 =0 and hence show that the ratio x : y is 1:1 or 2:1
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