Write the expression in terms of sines and/or cosines, and then simplify. - 

A. 1
B.
C. 1 - tan2 ?
D.

Answer: A

Mathematics

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A. sin4  + C
B. cos4  + C
C. 2 sin4  + C
D. 6 sin2  + C

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Add.-2 + 8

A. 6 B. 10 C. -10 D. -6

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Graph the equation and give the coordinates of the vertex.y = x2 + 3

A. (0, -3)

B. (-3, 0)

C. (3, 0)

D. (0, 3)

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Provide an appropriate response.What does the graph of the equation  look like?

A. The y-axis B. The xy-plane C. The z-axis D. The yz-plane

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