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Find the Specified Quantity $y = - 5 \cos \left( 2 x + \frac { \pi } { 4 } \right)$

Question 52

Multiple Choice

Find the specified quantity.
-Find the amplitude of $y = - 5 \cos \left( 2 x + \frac { \pi } { 4 } \right)$ .

A) 2
B) $- 10$
C) 5
D) $\frac { \pi } { 2 }$

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