The sum of the infinite GP 14 - 2 + 2/7 - 2/49 + ... is 1 (a) 4 (b) 12 12 c 12 (d) none of the above
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Answer:
12.25 is answer
none of the above
step by step
S=a/1-r
S =14÷ 1-(-1/7)
S=14÷8/7
S=14×7/8
S=12.25
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