Step 1:

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The amplitude of the function is $\"\"$ .

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$\"\"$

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The period of the function is $\"\"$

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$\"\"$

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A sinusoidal form of the function is $\"\"$ .

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Substitute $\"\"$ and $\"\"$ in above function,

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$\"\"$ .

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The equation of the sine function is $\"\"$ .

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Solution:

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The equation of the sine function is $\"\"$ .