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• lab{7.2.2a} Integrate [math]\int \sin^3\theta \; d\theta[/math] by using the fact that the exponent of [math]\sin \theta[/math] is an odd positive integer.
• lab{7.2.2b} Integrate [math]\int \sin^3 \theta \; d \theta[/math] by making use of the identity [math]\sin 3\theta = 3 \sin \theta - 4 \sin^3\theta[/math].
• Show that the answers obtained in \ref{ex7.2.2a} and \ref{ex7.2.2b} differ by a constant.