Questions: Factor and simplify the expression sin^3 x + sin x cos^2 x into one term involving one trigonometric function.
Transcript text: Factor and simplify the expression $\sin ^{3} x+\sin x \cos ^{2} x$ into one term involving one trigonometric function.
Solution
Solution Steps
To factor and simplify the expression \(\sin^3 x + \sin x \cos^2 x\), we can start by factoring out the common term \(\sin x\). This will allow us to express the entire expression in terms of a single trigonometric function. After factoring, we can use trigonometric identities to further simplify the expression.
Step 1: Factor the Expression
We start with the expression
\[
\sin^3 x + \sin x \cos^2 x.
\]
We can factor out the common term \(\sin x\):
\[
\sin x (\sin^2 x + \cos^2 x).
\]
Step 2: Simplify Using Trigonometric Identities
Next, we apply the Pythagorean identity, which states that
\[
\sin^2 x + \cos^2 x = 1.
\]
Substituting this identity into our factored expression gives us: