Can you differentiate this please? I keep getting the wrong answers.

Determine the question of the tangent line to y = x^sinx AT x = pi/2

This seemed alot easier when looking at it

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- Apr 5th 2009, 05:26 PM #1

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- Apr 5th 2009, 05:34 PM #2

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- Apr 5th 2009, 05:34 PM #3
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The derivative of the left hand side is . Use the product rule to differentiate the right hand side.

Substitute and (why?) and solve for the value of .

You now have the gradient of the tangent and you know a point on the tangent. Getting the equation of the tangent should be routine.

- Apr 5th 2009, 05:37 PM #4

- Apr 5th 2009, 06:04 PM #5

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- Apr 5th 2009, 06:38 PM #6

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