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OpenStudy (anonymous):
Find dy/dx. y=9^(-x)
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OpenStudy (kira_yamato):
dy/dx = 9^x ln 9 (-1) \[\frac{dy}{dx} = -2\left( 9^x \right)\ln3\]
OpenStudy (anonymous):
You mean 9^(-x)?
OpenStudy (kira_yamato):
yeah... gomen...
OpenStudy (anonymous):
So does du/dx = -x^(-2)?
OpenStudy (kira_yamato):
What is u?
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OpenStudy (anonymous):
Chain rule?
OpenStudy (anonymous):
|dw:1318928884758:dw|
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