whats the derivative of sin^2(theta)?


by M. next
Tags: derivative, sin2theta
M. next
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#1
May10-12, 11:00 PM
P: 354
but i need the derivative wrt time where theta depends on time
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Mark44
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#2
May10-12, 11:49 PM
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Quote Quote by M. next View Post
but i need the derivative wrt time where theta depends on time
Use the chain rule.
$$\frac{d}{dt}sin^2(\theta) = \frac{d}{d\theta}sin^2(\theta)\cdot \frac{d\theta}{dt} = ? $$
M. next
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#3
May10-12, 11:58 PM
P: 354
then it is simply 2sin(theta)cos(theta)*(theta dot)

Mark44
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#4
May11-12, 12:17 AM
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P: 21,063

whats the derivative of sin^2(theta)?


Yes, that's it.


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