Post-UTME Mathematics 2013 Objective — Question 48
Question 48 of 100 from the Post-UTME Screening (Post-UTME) Mathematics 2013 Objective paper, with the correct answer and a full explanation.
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Find the sum to infinity of the series ½ - ¼ + 1/8 - 1/16 + ...
- A. 1
- B. 1/3Correct
- C. 2/3
- D. 2
Explanation
This is a GP with a=½, r=-½. Sum to infinity = a/(1-r) = 0.5/1.5 = 1/3.
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