Hello! I have a quick question about a question I'm not too sure about... y = 2sin^2(x) What's the derivative? I'm thinking 4sin(x), am I right?
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Originally Posted by lionpants Hello! I have a quick question about a question I'm not too sure about... y = 2sin^2(x) What's the derivative? I'm thinking 4sin(x), am I right? dont forget to chain it....
Well you have a chain rule question. So just use the chain rule, don't guess your answers. Firstly, the chain rule we have so let then and your done.
Thanks for the help, it helped a lot! I have one more question though... I have this... y = sin(3x)cos(4x) I've worked it out using product rule and chain rule and come out with... (3cos(3x) * cos(4x)) + (sin(3x) * -4sin(4x))
It does exist a formula to split the original product into a sum. Have you seen it before? Your work is correct.
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