Find the indicated term of the geometric sequence.a1 = 3, r = -2; Find a2.

A. a2 = -12
B. a2 = 12
C. a2 = -6
D. a2 = 6


Answer: C

Mathematics

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B.

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Find all solutions of the equation in the complex number system.x3 + 1 = 0

A. {-1}
B. {-1,  +  - }
C. {-1i,  + i,  - i}
D. {-1,  + i,  - i}

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Evaluate.p3, when p = 0

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Mathematics