Express the given trigonometric function in terms of the indicated function.cos ? in terms of sin ?

A.  1 - sin ? 
B.   
C.  ± 
D.  ± 


Answer: C

Mathematics

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A. like B. unlike

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A. 37 B. -81 C. -35 D. 54

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Solve the problem.The amount of gas that a helicopter uses is directly proportional to the number of hours spent flying. The helicopter flies for 3 hours and uses 27 gallons of fuel. Find the number of gallons of fuel that the helicopter uses to fly for 6 hours.

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