Use a Graphing Utility to Approximate the Solutions (To Three $\left( - \frac { \pi } { 2 } , \frac { \pi } { 2 } \right)$

question 53

Multiple Choice

Use a graphing utility to approximate the solutions (to three decimal places) of the given equation in the interval $\left( - \frac { \pi } { 2 } , \frac { \pi } { 2 } \right)$ . ​​ $6 \sin 2 x - 8 \cos x + 9 \sin x = 6$ ​

• A)​x = 0.398
• B)​​x = 1.336
• C)​​x = 0.094
• D)​​x = 0.73
• E)​​x = 0.139

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