Consider an infinite geometric series with first term \( a \) and common ratio \( r \). If its s... VIDEO
Consider an infinite geometric series with first term \( a \) and common ratio \( r \). If its sum is 4 and the second term is \( 3 / 4 \), then
(A) \( a=\frac{4}{7}, r=\frac{3}{7} \)
(B) \( a=\frac{3}{2}, r=\frac{1}{2} \)
(C) \( a=2, r=\frac{3}{8} \)
(D) \( a=3, r=\frac{1}{4} \)
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