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This isn't homework, it's review for our exam. Couldn't remember how to work it :( Thanks!

  • Calculus -

    Several layers of derivatives here ...
    remember for y = e^u
    dy/dx = e^u (du/dx)

    so f'(x) = e^(xsin2x)(d(xsin2x)/dx)
    = e^(xsin2x)(x(2cos2x) + sin2x) using the product rule for the last part

  • Calculus -

    Thank you! :)

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