Exam 6: Analytic Trigonometry

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The monthly sales S (in hundreds of units) of baseball equipment for an Internet sporting goods site are approximated by The monthly sales S (in hundreds of units) of baseball equipment for an Internet sporting goods site are approximated by   where t is the time (in months), with   corresponding to January. Determine the months when sales exceed   units at any time during the month. where t is the time (in months), with The monthly sales S (in hundreds of units) of baseball equipment for an Internet sporting goods site are approximated by   where t is the time (in months), with   corresponding to January. Determine the months when sales exceed   units at any time during the month. corresponding to January. Determine the months when sales exceed The monthly sales S (in hundreds of units) of baseball equipment for an Internet sporting goods site are approximated by   where t is the time (in months), with   corresponding to January. Determine the months when sales exceed   units at any time during the month. units at any time during the month.

(Multiple Choice)
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Use the product-to-sum formula to write the given product as a sum or difference. Use the product-to-sum formula to write the given product as a sum or difference.

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Use the figure below to find the exact value of the given trigonometric expression. Use the figure below to find the exact value of the given trigonometric expression.    Use the figure below to find the exact value of the given trigonometric expression.

(Multiple Choice)
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If  If   , use trigonometric substitution to write   as a trigonometric function of  \theta , where   . , use trigonometric substitution to write  If   , use trigonometric substitution to write   as a trigonometric function of  \theta , where   . as a trigonometric function of θ\theta , where  If   , use trigonometric substitution to write   as a trigonometric function of  \theta , where   . .

(Multiple Choice)
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Find the exact solutions of the given equation in the interval Find the exact solutions of the given equation in the interval   .  . Find the exact solutions of the given equation in the interval   .

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Use the half-angle formulas to determine the exact value of the given trigonometric expression. Use the half-angle formulas to determine the exact value of the given trigonometric expression.

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Write the given expression as an algebraic expression. Write the given expression as an algebraic expression.

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Use the sum-to-product formulas to find the exact value of the given expression. Use the sum-to-product formulas to find the exact value of the given expression.

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Find the exact value of Find the exact value of   given that   and   . (Both u and v are in Quadrant II.) given that Find the exact value of   given that   and   . (Both u and v are in Quadrant II.) and Find the exact value of   given that   and   . (Both u and v are in Quadrant II.) . (Both u and v are in Quadrant II.)

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Use the cofunction identities to evaluate the expression below without the aid of a calculator. Use the cofunction identities to evaluate the expression below without the aid of a calculator.

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Use the product-to-sum formula to write the given product as a sum or difference. Use the product-to-sum formula to write the given product as a sum or difference.

(Multiple Choice)
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Find the exact value of Find the exact value of   given that   and   . (Both u and v are in Quadrant II.) given that Find the exact value of   given that   and   . (Both u and v are in Quadrant II.) and Find the exact value of   given that   and   . (Both u and v are in Quadrant II.) . (Both u and v are in Quadrant II.)

(Multiple Choice)
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Use the sum-to-product formulas to find the exact value of the given expression. Use the sum-to-product formulas to find the exact value of the given expression.

(Multiple Choice)
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Rewrite Rewrite   as a single logarithm and then simplify the result. as a single logarithm and then simplify the result.

(Multiple Choice)
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Use the half-angle formulas to determine the exact value of the given trigonometric expression. Use the half-angle formulas to determine the exact value of the given trigonometric expression.

(Multiple Choice)
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The monthly sales S (in hundreds of units) of baseball equipment for an Internet sporting goods site are approximated by The monthly sales S (in hundreds of units) of baseball equipment for an Internet sporting goods site are approximated by   where t is the time (in months), with   corresponding to January. Determine the months when sales exceed   units at any time during the month. where t is the time (in months), with The monthly sales S (in hundreds of units) of baseball equipment for an Internet sporting goods site are approximated by   where t is the time (in months), with   corresponding to January. Determine the months when sales exceed   units at any time during the month. corresponding to January. Determine the months when sales exceed The monthly sales S (in hundreds of units) of baseball equipment for an Internet sporting goods site are approximated by   where t is the time (in months), with   corresponding to January. Determine the months when sales exceed   units at any time during the month. units at any time during the month.

(Multiple Choice)
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If  If   , use trigonometric substitution to write   as a trigonometric function of  \theta , where   . , use trigonometric substitution to write  If   , use trigonometric substitution to write   as a trigonometric function of  \theta , where   . as a trigonometric function of θ\theta , where  If   , use trigonometric substitution to write   as a trigonometric function of  \theta , where   . .

(Multiple Choice)
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Find the exact value of the given expression. Find the exact value of the given expression.

(Multiple Choice)
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Use the sum-to-product formulas to find the exact value of the given expression. Use the sum-to-product formulas to find the exact value of the given expression.

(Multiple Choice)
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Find all solutions of the given equation in the interval Find all solutions of the given equation in the interval   .  . Find all solutions of the given equation in the interval   .

(Multiple Choice)
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