Final answer to the problem
Step-by-step Solution
How should I solve this problem?
- Integrate using trigonometric identities
- Integrate by partial fractions
- Integrate by substitution
- Integrate by parts
- Integrate using tabular integration
- Integrate by trigonometric substitution
- Weierstrass Substitution
- Integrate using basic integrals
- Product of Binomials with Common Term
- FOIL Method
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Reduce $\cos\left(x\right)^2$ by applying trigonometric identities
Learn how to solve definite integrals problems step by step online.
$\frac{1+\cos\left(2x\right)}{2}$
Learn how to solve definite integrals problems step by step online. Integrate the function cos(x)^2 from 1 to 3. Reduce \cos\left(x\right)^2 by applying trigonometric identities. Take the constant \frac{1}{2} out of the integral. Expand the integral \int\left(1+\cos\left(2x\right)\right)dx into 2 integrals using the sum rule for integrals, to then solve each integral separately. The integral of a constant is equal to the constant times the integral's variable.