I'm not quite sure what the question is asking:(adsbygoogle = window.adsbygoogle || []).push({});

"If [tex]f(x)=e^xsin(x)[/tex], then the number of zeros of [tex]f[/tex] on the interval [o,2pi] is?"

I took the derivative of this and found where it was equal to zero:

[tex]f(x)=e^xsin(x)[/tex]

[tex]f'(x)=e^xsin(x)+e^xcos(x)[/tex]

[tex]0=sin(x)+cos(x)[/tex]

I got zero. However, tha answer is 3, any suggestions?

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# Homework Help: Math question

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