Then

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* SOLUTION 2 :* Differentiate .

Then

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* SOLUTION 3 :* Differentiate .

Then

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* SOLUTION 4 :* Differentiate .

Then

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* SOLUTION 5 :* Differentiate .

Then

(An alternate answer can be given using the trigonometry identity .)

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* SOLUTION 6 :* Differentiate .

Then

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* SOLUTION 7 :* Differentiate .

Then

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* SOLUTION 8 :* Differentiate .

Then

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* SOLUTION 9 :* Differentiate .

Then

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* SOLUTION 10 :* Differentiate .

Then

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* SOLUTION 11 :* Differentiate .

Then

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* SOLUTION 12 :* Differentiate .

Then

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Fri May 30 16:41:01 PDT 1997