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(a)

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Find $\"\"$ .

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The trigonometric function $\"\"$ .

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$\"\"$

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The value of $\"\"$ is $\"\"$ .

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Therefore, the point $\"\"$ is on the graph of $\"\"$ .

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(b)

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If the function is defined as a list of ordered pairs, simply swap the $\"\"$ and $\"\"$ values.

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Remember, the inverse relation will be a function only if the original function is one-to-one.

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The point $\"\"$ is on the graph of $\"\"$ .

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Since the function $\"\"$ is one-to-one, the point $\"\"$ is on the graph of $\"\"$ .

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(c)

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Find the value of $\"\"$ at $\"\"$ .

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The function is $\"\"$ .

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Substitute $\"\"$ in above function.

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$\"\"$ (since the trigonometric function $\"\"$ )

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Therefore, the point $\"\"$ is on the graph of $\"\"$ .

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(a)

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The value of $\"\"$ is $\"\"$ .

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Therefore, the point $\"\"$ is on the graph of $\"\"$ .

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(b)

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The point $\"\"$ is on the graph of $\"\"$ .

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(c)

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The point $\"\"$ is on the graph of $\"\"$ .