$\"\"$

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(a)

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The function $\"\"$ and $\"\"$ and the inveral $\"\"$ .

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Graph :

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Graph the function $\"\"$ and $\"\"$ in the interval $\"\"$ .

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$\"\"$ .

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$\"\"$

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(b)

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The function $\"\"$ and $\"\"$ .

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Solve $\"\"$ .

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$\"\"$

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The trignometry identites : $\"\"$

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$\"\"$ and $\"\"$

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$\"\"$ and $\"\"$

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$\"\"$ and $\"\"$

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Point of intersections are $\"\"$ and $\"\"$ .

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Graph :

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Graph the functions $\"\"$ and $\"\"$ .

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Plot the point of intersection $\"\"$ and $\"\"$ .

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$\"\"$

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$\"\"$

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(c)

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The function $\"\"$ and $\"\"$

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Solve $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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The trignometry identites : $\"\"$ .

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

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

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

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The solution is $\"\"$ .

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$\"\"$

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(d)

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The function $\"\"$ and $\"\"$ .

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The intersection points are $\"\"$ and $\"\"$ .

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

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Graph :

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Graph the functions $\"\"$ and $\"\"$ .

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Plot the point of intersection $\"\"$ and $\"\"$ .

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Shade the region between $\"\"$ .

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$\"\"$ .

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$\"\"$

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(a) The function $\"\"$ and $\"\"$ , $\"\"$

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$\"\"$

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(b) The intersection points are $\"\"$ and $\"\"$ .

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Graph of the functions $\"\"$ , $\"\"$ and point of intersection $\"\"$ and $\"\"$ :

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$\"\"$

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(c) The solution is $\"\"$ .

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(d)

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Graph of the functions $\"\"$ , $\"\"$ and point of intersection $\"\"$ and $\"\"$ :

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$\"\"$