What is the sum to infinity of the geometric series with first term 12 and common ratio ?
Answer and explanation
Correct answer: B. 36
- Step 1: For , . Answer: 36. Why not the others: 20: adds the first two terms. 18: divides by . 4: multiplies by .
Practise more Calculus, algebra and coordinate geometry.
Free questions with an explanation for every one, and full timed IOE Engineering Entrance Examination (Tribhuvan University, Nepal) mock tests.