Provide an appropriate response.Give the signs of the three trigonometric functions of the vector with the endpoint (-4, -7).

A. sine, negative; cosine, positive, tangent, negative
B. sine, positive; cosine, positive, tangent, positive
C. sine, negative; cosine, negative, tangent, positive
D. sine, negative; cosine, negative, tangent, negative


Answer: C

Mathematics

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B. [0, 1]

C. {1}

D. ?

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Solve the system by substitution.  x + 2y = 3 5x + 2y = 31

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