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Find the Amplitude Of y=π7cos(3x2)y = - \frac { \pi } { 7 } \cos \left( \frac { 3 x } { 2 } \right)

Question 5

Multiple Choice

Find the amplitude of y=π7cos(3x2) y = - \frac { \pi } { 7 } \cos \left( \frac { 3 x } { 2 } \right) .


A) π7- \frac { \pi } { 7 }
B) 4π3\frac { 4 \pi } { 3 }
C) 32\frac { 3 } { 2 }
D) 17\frac { 1 } { 7 }
E) π7\frac { \pi } { 7 }

Correct Answer:

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