What is the sum of the infinite geometric series? negative 3 minus 3 halves minus 3 fourths minus 3 eighths minus 3 over 16 minus dot dot dot

The first term is −3, and each term is multiplied by 1/2 to get the next, so the common ratio is 1/2. Since |1/2| < 1, the infinite geometric series has sum a₁/(1 − r) = −3/(1 − 1/2) = −6. Therefore, the sum is negative 6, choice A.

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