Write the first four terms of the geometric sequence whose first term and common ratio are given.a = 4, r = -7

A. 4, -28, -112, -448, . . .
B. 4, -28, -196, -1372, . . .
C. 4, -28, 196, -1372, . . .
D. 4, -28, 112, -448, . . .


Answer: C

Mathematics

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A.  
B.
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