Transcript text: If $h(x)=\sin (3 x)$, then $h\left(\frac{\pi}{3}\right)=$
Solution
Solution Steps
Step 1: Substitute the given value into the function
We are given the function \( h(x) = \sin(3x) \). To find \( h\left(\frac{\pi}{3}\right) \), substitute \( x = \frac{\pi}{3} \) into the function:
\[
h\left(\frac{\pi}{3}\right) = \sin\left(3 \cdot \frac{\pi}{3}\right).
\]
Step 2: Simplify the argument of the sine function
Simplify the argument of the sine function:
\[
3 \cdot \frac{\pi}{3} = \pi.
\]
Thus, the expression becomes:
\[
h\left(\frac{\pi}{3}\right) = \sin(\pi).
\]
Step 3: Evaluate the sine function
We know that \( \sin(\pi) = 0 \). Therefore:
\[
h\left(\frac{\pi}{3}\right) = 0.
\]