1. Let's clarify the problem: it seems you're referring to an expression or function where the power applies only to the sine term. 2. For example, if you have $y = \sin^n x$, this means the sine function is raised to the power $n$, not the entire expression. 3. This contrasts with $(\sin x)^n$, which is the same and is the standard way to express this. 4. Remember, $\sin^n x$ is shorthand for $(\sin x)^n$. 5. For a concrete example, $\sin^2 x = (\sin x)^2 = \sin x \times \sin x$. 6. Therefore, if the power is only on the sine, we write it as $\sin^n x$ or $(\sin x)^n$ explicitly.