Complete the identity.(sin x + cos x)2 = ?

A. sin 2x
B. 1 + cos 2x
C. 1 + sin 2x
D. 1 - cos 2x


Answer: C

Mathematics

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A. Arithmetic B. Neither C. Geometric

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Find the best buy (based on cost per unit).Brand A: 18 oz for $10.62Brand B: 15 oz for $8.25

A. Not enough information B. Brand B C. Brand A D. Equal value

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Divide and express the result in standard form.

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B.  + i
C.  - i
D. 4 + 2i

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