Express the Function as a Sinusoid of the Form Y $$y = 7 \sin x - 2 \cos x$$

question 25

Multiple Choice

Express the function as a sinusoid of the form y = a sin (bx + c) .
- $$y = 7 \sin x - 2 \cos x$$

• A) \(y = \sqrt { 53 } \sin \left( x - \cos ^ { - 1 } \left( \frac { 2 } { \sqrt { 53 } } \right) \right)\)
• B) \(y = 53 \sin \left( x + \sin ^ { - 1 } \left( \frac { 2 } { \sqrt { 53 } } \right) \right)\)
• C) \(y = \sqrt { 53 } \sin \left( x + \sin - 1 \left( \frac { 2 } { \sqrt { 53 } } \right) \right)\)
• D) \(y = \sqrt { 53 } \sin \left( x - \sin - 1 \left( \frac { 2 } { \sqrt { 53 } } \right) \right)\)

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