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The trigonometric expression is $\"\"$ .

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Since the period of the sine function is $\"\"$ , find the angles in the interval $\"\"$ .

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There is one angle $\"\"$ for $\"\"$ .

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$\"\"$ .

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General solution of $\"\"$ , then the is $\"\"$ ,

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Where $\"\"$ is an integer.

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The general solution of $\"\"$ is $\"\"$ .

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$\"\"$

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Then $\"\"$ and $\"\"$ .

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$ .

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ .

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ .

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ .

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Six solutions are $\"\"$ and $\"\"$ .

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General solution is $\"\"$ and $\"\"$ .

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Six solutions are $\"\"$ and $\"\"$ .