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swat32
3 years ago
11

Find dy/dx 2^(xy) = x^2

Mathematics
1 answer:
Dovator [93]3 years ago
3 0
2^{xy}=x^2
e^{\ln2^{xy}}=x^2
e^{xy\ln2}=x^2

Differentiate, using the chain rule on the left side:

\dfrac{\mathrm d}{\mathrm dx}[e^{xy\ln2}]=\dfrac{\mathrm d}{\mathrm dx}[x^2]
e^{xy\ln2}\dfrac{\mathrm d}{\mathrm dx}[xy\ln2]=2x
e^{xy\ln2}\left(x\ln2\dfrac{\mathrm dy}{\mathrm dx}+y\ln2\right)=2x
x\ln2\dfrac{\mathrm dy}{\mathrm dx}+y\ln2=2xe^{-xy\ln2}
x\dfrac{\mathrm dy}{\mathrm dx}+y=\dfrac{2^{xy+1}}{\ln2}
\dfrac{\mathrm dy}{\mathrm dx}=\dfrac1x\left(\dfrac{2^{xy+1}}{\ln2}-y\right)
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