Since we have an even power of cos x, to evaluate π/3cos2 π dππ/4 , we must now make the further substitution. cos2 π = 12 1 1 + cos 2 2 π
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To evaluate the integral \(\int_{\pi/4}^{\pi/3} \cos^2 \theta \, d\theta\), we will use the substitution for \(\cos^2 \theta\). Show moreβ¦
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