Exam 1: Trigonometry

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Evaluate each function.Round your answers to four decimal places. ​ Cos17°36' and sin67°23' ​

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Determine which of the graphs below represents ​ ​ Determine which of the graphs below represents ​ ​   ​ ​

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Determine whether the function below is even, odd, or neither. ​ F(x) = 0.8 cot x ​

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The displacement from equilibrium of an oscillating weight suspended by a spring is given by The displacement from equilibrium of an oscillating weight suspended by a spring is given by   , where y is the displacement (in feet) and t is the time (in seconds).Find the displacements when   .(Round your answers to two decimal places.) ​ , where y is the displacement (in feet) and t is the time (in seconds).Find the displacements when The displacement from equilibrium of an oscillating weight suspended by a spring is given by   , where y is the displacement (in feet) and t is the time (in seconds).Find the displacements when   .(Round your answers to two decimal places.) ​ .(Round your answers to two decimal places.) ​

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Evaluate (if possible) the sine, cosine, and tangent of the real number. ​ Evaluate (if possible) the sine, cosine, and tangent of the real number. ​   ​ ​

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The angle of elevation of the sun is 26o.Find the length, l, of a shadow cast by a tree that is 38 feet tall.Round your answer to two decimal places.

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After leaving the runway, a plane's angle of ascent is 17o and its speed is 278 feet per second.How many minutes will it take for the airplane to climb to a height of 11,500 feet? Round answer to two decimal places.

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The current I (in amperes) when 100 volts is applied to a circuit is given by ​ The current I (in amperes) when 100 volts is applied to a circuit is given by ​   ​ Where t is the time (in seconds) after the voltage is applied.Approximate the current at T = 0.8 second after the voltage is applied.(Round your answers to two decimal places.) ​ ​ Where t is the time (in seconds) after the voltage is applied.Approximate the current at T = 0.8 second after the voltage is applied.(Round your answers to two decimal places.) ​

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State the period of the function: ​ State the period of the function: ​   ​ ​

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Find the point (x, y) on the unit circle that corresponds to the real number t. ​ Find the point (x, y) on the unit circle that corresponds to the real number t. ​   ​ ​

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Find the exact values of the three trigonometric functions sine, cosine, tangent of the real number t. ​ Find the exact values of the three trigonometric functions sine, cosine, tangent of the real number t. ​   ​   ​ ​ Find the exact values of the three trigonometric functions sine, cosine, tangent of the real number t. ​   ​   ​ ​

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Determine whether the function below is even, odd, or neither. ​ Determine whether the function below is even, odd, or neither. ​   ​ ​

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Determine the quadrant in which an angle with measure 114° lies.

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For the simple harmonic motion described by the trigonometric function, find the maximum displacement. ​ For the simple harmonic motion described by the trigonometric function, find the maximum displacement. ​   ​ ​

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A security car with its spotlight on is parked A security car with its spotlight on is parked   meters from a warehouse.Consider θ and x as shown in the figure.Write θ as a function of x. ​   ​ meters from a warehouse.Consider θ and x as shown in the figure.Write θ as a function of x. ​ A security car with its spotlight on is parked   meters from a warehouse.Consider θ and x as shown in the figure.Write θ as a function of x. ​   ​ ​

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Find (if possible) the complement of the following angle. ​ Find (if possible) the complement of the following angle. ​   ​ ​

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Find the point (x, y) on the unit circle that corresponds to the real number t.(Round your answer to one decimal place.) ​ Find the point (x, y) on the unit circle that corresponds to the real number t.(Round your answer to one decimal place.) ​   ​ ​

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Use a graphing utility to select the graph of the function.Include two full periods. ​ Y = -2 sin (2x + π) ​

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A police department has set up a speed enforcement zone on a straight length of highway.A patrol car is parked parallel to the zone, a = 210 feet from one end and b = 130 feet from the other end (see figure). ​ A police department has set up a speed enforcement zone on a straight length of highway.A patrol car is parked parallel to the zone, a = 210 feet from one end and b = 130 feet from the other end (see figure). ​   ​ Find the length l of the zone.Round your answer to two decimal places. ​ ​ Find the length l of the zone.Round your answer to two decimal places. ​

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The daily consumption C (in gallons) of diesel fuel on a farm is modeled by ​ The daily consumption C (in gallons) of diesel fuel on a farm is modeled by ​   , ​ Where t is the time (in days), with t = 1 corresponding to January 1. What is the period of the model? ​ , ​ Where t is the time (in days), with t = 1 corresponding to January 1. What is the period of the model? ​

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