$\"\"$

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The function is $\"\"$ and points are $\"\"$ .

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$\"\"$ .

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Apply derivative on each side with respect to $\"\"$ .

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Derivative of inverse trigonometric function: $\"\"$ .

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$\"\"$

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Derivative of the function is $\"\"$ .

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$\"\"$

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Slope of the line is the first derivative of the function at the point $\"\"$ .

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Substitute $\"\"$ in the derivative of the function.

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$\"\"$

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Slope of the tangent line is $\"\"$ .

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$\"\"$

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Point-slope form of line equation is $\"\"$ .

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Substitute $\"\"$ and $\"\"$ in the point slope form.

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$\"\"$

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The tangent line equation is $\"\"$ .

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$\"\"$

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The tangent line equation is $\"\"$ .