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

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Find the reference number $\"\"$ .

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The reference number $\"\"$ associated with $\"\"$ is the shortest distance along the unit circle between the terminal points determined by $\"\"$ and $\"\"$ -axis.

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$\"\"$ $\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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Reference number is $\"\"$

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(b)

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

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$\"\"$ $\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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Reference number is $\"\"$

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(c)

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

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$\"\"$ $\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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Reference number is $\"\"$

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(d)

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

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$\"\"$ $\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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Reference number is $\"\"$

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Find the terminal number.

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The point $\"\"$ obtained by moving along the unit circle in either clockwise or anti clockwise direction is the terminal distance.

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The reference number is $\"\"$ , the terminal point is $\"\"$ .

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Since $\"\"$ lies in third quadrant, both $\"\"$

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Terminal point is $\"\"$ .

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