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notes/education/math/MATH1220 (calc II)/Integration with Trig Identities.md
2025-09-03 12:44:06 -06:00

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