6 lines
267 B
Markdown
6 lines
267 B
Markdown
The below integration makes use of the following trig identities:
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1. The Pythagorean identity: $\sin^2(x) + \cos^2(x) = 1$
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2. The derivative of sine: $\frac{d}{dx}sin(x) = cos(x)$
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3. The derivative of cosine: $\dfrac{d}{dx} \cos(x) = -\sin(x)$
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$$ \cos^2(x) = \frac{}
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