Find the derivative of f(x)=e−7x⋅sinx

[From: ] [author: ] [Date: 11-10-02] [Hit: ]

-If f(x) = [e^(-7x)] sin(x), then I agree with your calculation. If this is being machine scored, you might have to simplify the first term to -7 e^(-7x) sin(x), and perhaps also write the second term as e^(-7x) cos(x). Or you might have to factor out the e^(-7x) to get e^(-7x)(-7 sin(x) + cos(x)).......

Find the derivative of f(x)=e^−7x⋅sinx

i got (e^-7x)(-7)(sinx)+(cosx)(e^-7x)

but its wrong. Anyone know what i did wrong?

-

If f(x) = [e^(-7x)] sin(x), then I agree with your calculation. If this is being machine scored, you might have to simplify the first term to -7 e^(-7x) sin(x), and perhaps also write the second term as e^(-7x) cos(x). Or you might have to factor out the e^(-7x) to get e^(-7x)(-7 sin(x) + cos(x)).

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keywords: minus,derivative,the,sdot,sinx,of,Find,Find the derivative of f(x)=e−7x⋅sinx

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