Exam 9: Trigonometric Models

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Decide whether the integral converges. If the integral converges, compute its value. Decide whether the integral converges. If the integral converges, compute its value.

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B

Find the derivative of the function. Find the derivative of the function.

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A

Evaluate the integral. Evaluate the integral.

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C

Calculate the derivative. Calculate the derivative.

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Recall that the average of a function Recall that the average of a function   on an interval   is   Find the average of the given function.   over   . on an interval Recall that the average of a function   on an interval   is   Find the average of the given function.   over   . is Recall that the average of a function   on an interval   is   Find the average of the given function.   over   . Find the average of the given function. Recall that the average of a function   on an interval   is   Find the average of the given function.   over   . over Recall that the average of a function   on an interval   is   Find the average of the given function.   over   . .

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Calculate the derivative. Calculate the derivative.

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Use the conversion formula Use the conversion formula   to replace the expression   by a sine function. to replace the expression Use the conversion formula   to replace the expression   by a sine function. by a sine function.

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Evaluate the integral. Evaluate the integral.   Use the symbol C to write the constant. Use the symbol C to write the constant.

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Find the derivative of the function. Find the derivative of the function.

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Recall that the total income received from time t = a to time t = b from a continuous income stream of R (t)dollars per year is Recall that the total income received from time t = a to time t = b from a continuous income stream of R (t)dollars per year is   Find the total value of the given income stream and also find its future value (at the end of the given interval)using the given interest rate.  Find the total value of the given income stream and also find its future value (at the end of the given interval)using the given interest rate. Recall that the total income received from time t = a to time t = b from a continuous income stream of R (t)dollars per year is   Find the total value of the given income stream and also find its future value (at the end of the given interval)using the given interest rate.

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Model the curve with a sine function. Model the curve with a sine function.   Note that the period of the curve is   and its range is   . Write the model function as a function of (x)and   . Note that the period of the curve is Model the curve with a sine function.   Note that the period of the curve is   and its range is   . Write the model function as a function of (x)and   . and its range is Model the curve with a sine function.   Note that the period of the curve is   and its range is   . Write the model function as a function of (x)and   . . Write the model function as a function of (x)and Model the curve with a sine function.   Note that the period of the curve is   and its range is   . Write the model function as a function of (x)and   . .

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Evaluate the integral. Evaluate the integral.   Use the symbol C to write the constant. Use the symbol C to write the constant.

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Sketch the curves without any technological help. Sketch the curves without any technological help.   ;  ; Sketch the curves without any technological help.   ;

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The depth of water The depth of water   at my favorite surfing spot varies from 9 to 20 feet, depending on the time. Last Sunday high tide occurred at 5:00 A.M. and the next high tide occurred at 6:30 P.M. Use a sine function to model the depth of water as a function of time t in hours since midnight on Sunday morning. at my favorite surfing spot varies from 9 to 20 feet, depending on the time. Last Sunday high tide occurred at 5:00 A.M. and the next high tide occurred at 6:30 P.M. Use a sine function to model the depth of water as a function of time t in hours since midnight on Sunday morning.

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Decide whether each integral converges. If the integral converges, compute its value. Choose the correct letter for each question.
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Use geometry to compute the given integral. Use geometry to compute the given integral.

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Evaluate the integral. Evaluate the integral.

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Use the conversion formula Use the conversion formula   to replace the expression   by a sine function. to replace the expression Use the conversion formula   to replace the expression   by a sine function. by a sine function.

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Model the curve with a cosine function. Model the curve with a cosine function.   Note that the period of the curve is   its range is   and the graph of the cosine function is shifted to the right 0.7 units. Note that the period of the curve is Model the curve with a cosine function.   Note that the period of the curve is   its range is   and the graph of the cosine function is shifted to the right 0.7 units. its range is Model the curve with a cosine function.   Note that the period of the curve is   its range is   and the graph of the cosine function is shifted to the right 0.7 units. and the graph of the cosine function is shifted to the right 0.7 units.

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Calculate the derivative. Calculate the derivative.

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