Exam 9: Parametric Equations and Polar Coordinates

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Find the length of the curve. Find the length of the curve.   ,   ,  , Find the length of the curve.   ,   ,  , Find the length of the curve.   ,   ,

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B

Find a Cartesian equation for the curve described by the given polar equation. Find a Cartesian equation for the curve described by the given polar equation.

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Find the area of the region enclosed by one loop of the curve. Find the area of the region enclosed by one loop of the curve.

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C

Match the parametric equations with the graphs labeled a-e. Match the parametric equations with the graphs labeled a-e.

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Match the parametric equations with the graphs labeled a-e. Match the parametric equations with the graphs labeled a-e.

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Select the curve by using the parametric equations to plot the points. Select the curve by using the parametric equations to plot the points.

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Consider the polar equation Consider the polar equation   .(a) Find the eccentricity and an equation of the directrix of the conic.(b) Identify the conic.(c) Sketch the curve. .(a) Find the eccentricity and an equation of the directrix of the conic.(b) Identify the conic.(c) Sketch the curve.

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Set up an integral that represents the length of the curve. Then use your calculator to find the length correct to four decimal places. Set up an integral that represents the length of the curve. Then use your calculator to find the length correct to four decimal places.

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Sketch the polar curve with the given equation. Sketch the polar curve with the given equation.

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Write a polar equation in r and θ\theta of an ellipse with the focus at the origin, with the eccentricity  Write a polar equation in r and  \theta of an ellipse with the focus at the origin, with the eccentricity   and directrix   . and directrix  Write a polar equation in r and  \theta of an ellipse with the focus at the origin, with the eccentricity   and directrix   . .

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Find the polar equation for the curve represented by the given Cartesian equation. Find the polar equation for the curve represented by the given Cartesian equation.

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Find the area enclosed by the curve Find the area enclosed by the curve   . .

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Find the area of the region that lies inside the first curve and outside the second curve. Find the area of the region that lies inside the first curve and outside the second curve.

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Consider the polar equation Consider the polar equation   .(a) Find the eccentricity and an equation of the directrix of the conic.(b) Identify the conic.(c) Sketch the curve. .(a) Find the eccentricity and an equation of the directrix of the conic.(b) Identify the conic.(c) Sketch the curve.

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The orbit of Hale-Bopp comet, discovered in 1995, is an ellipse with eccentricity The orbit of Hale-Bopp comet, discovered in 1995, is an ellipse with eccentricity   and one focus at the Sun. The length of its major axis is   AU. [An astronomical unit (AU) is the mean distance between Earth and the Sun, about 93 million miles.] Find the maximum distance from the comet to the Sun. (The perihelion distance from a planet to the Sun is   and the aphelion distance is   .) Find the answer in AU and round to the nearest hundredth. and one focus at the Sun. The length of its major axis is The orbit of Hale-Bopp comet, discovered in 1995, is an ellipse with eccentricity   and one focus at the Sun. The length of its major axis is   AU. [An astronomical unit (AU) is the mean distance between Earth and the Sun, about 93 million miles.] Find the maximum distance from the comet to the Sun. (The perihelion distance from a planet to the Sun is   and the aphelion distance is   .) Find the answer in AU and round to the nearest hundredth. AU. [An astronomical unit (AU) is the mean distance between Earth and the Sun, about 93 million miles.] Find the maximum distance from the comet to the Sun. (The perihelion distance from a planet to the Sun is The orbit of Hale-Bopp comet, discovered in 1995, is an ellipse with eccentricity   and one focus at the Sun. The length of its major axis is   AU. [An astronomical unit (AU) is the mean distance between Earth and the Sun, about 93 million miles.] Find the maximum distance from the comet to the Sun. (The perihelion distance from a planet to the Sun is   and the aphelion distance is   .) Find the answer in AU and round to the nearest hundredth. and the aphelion distance is The orbit of Hale-Bopp comet, discovered in 1995, is an ellipse with eccentricity   and one focus at the Sun. The length of its major axis is   AU. [An astronomical unit (AU) is the mean distance between Earth and the Sun, about 93 million miles.] Find the maximum distance from the comet to the Sun. (The perihelion distance from a planet to the Sun is   and the aphelion distance is   .) Find the answer in AU and round to the nearest hundredth. .) Find the answer in AU and round to the nearest hundredth.

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Find the Cartesian coordinates of the point Find the Cartesian coordinates of the point   . .

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The graph of the following curve is given. Find the area that it encloses. The graph of the following curve is given. Find the area that it encloses.    The graph of the following curve is given. Find the area that it encloses.

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Select the curve by using the parametric equations to plot the points. Select the curve by using the parametric equations to plot the points.

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Find the length of the polar curve. Find the length of the polar curve.

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Find a polar equation for the curve represented by the given Cartesian equation. Find a polar equation for the curve represented by the given Cartesian equation.

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