Find the specified quantity.
-Find the period of $y = 3 \cos \left( 3 x + \frac { \pi } { 2 } \right)$.
A) $\frac { \pi } { 2 }$
B) $\pi$
C) 3
D) $\frac { 2 \pi } { 3 }$

Name: Find the specified quantity. -Find the period of $y = 3 \cos \left( 3 x + \frac { \pi } { 2 } \right)$. A) $\frac { \pi } { 2 }$ B) $\pi$ C) 3 D) $\frac { 2 \pi } { 3 }$
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Quizplus · Accepted Answer

The period of a cosine function $y = a \cos(bx + c)$ is given by $\frac{2\pi}{b}$. Here, $b = 3$, so the period is $\frac{2\pi}{3}$.

Find the Specified Quantity y=3cos⁡(3x+π2)y = 3 \cos \left( 3 x + \frac { \pi } { 2 } \right)y=3cos(3x+2π​)

Find the Specified Quantity $y = 3 \cos \left( 3 x + \frac { \pi } { 2 } \right)$