$\"\"$

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(a)

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The trigonometric functions are $\"\"$ and $\"\"$ .

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The first trigonometric function is $\"\"$ .

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Find the period :

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One cycle :

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$\"\"$

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$\"\"$ .

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Graph of the trigonometric function $\"\"$ is :

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$\"graph$

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$\"\"$

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The second trigonometric function is $\"\"$ .

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At $\"\"$ , $\"\"$ .

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Find the period : \ \ One cycle :

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ . $\"\"$

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Graph of the trigonometric functions $\"\"$ and $\"\"$ is : $\"graph$

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Observe the above graph :

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The graph $\"\"$ is shifted $\"\"$ units to the left of the graph of $\"\"$ . $\"\"$

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(b)

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The trigonometric functions are $\"\"$ and $\"\"$ .

\

The first trigonometric function is $\"\"$ .

\

Find the period :

\

One cycle :

\

$\"\"$

\

$\"\"$ .

\

Graph of the trigonometric function $\"\"$ is :

\

$\"graph$

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$\"\"$

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The second trigonometric function is $\"\"$ .

\

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At $\"\"$ , $\"\"$ .

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Find the period : \ \ One cycle :

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$\"\"$

\

$\"\"$

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$\"\"$ \ \

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$\"\"$ . $\"\"$

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Graph of the trigonometric functions $\"\"$ and $\"\"$ is :

\

$\"graph$

\

Observe the above graph :

\

The graph $\"\"$ is shifted $\"\"$ units to the right of the graph of $\"\"$ .

\

$\"\"$

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(a)

\

Graph of the trigonometric functions $\"\"$ and $\"\"$ is : $\"graph$

\

(b)

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Graph of the trigonometric functions $\"\"$ and $\"\"$ is :

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$\"graph$