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Question: Answered & Verified by Expert
The product 21441168148161128.... to is equal to:
MathematicsSequences and SeriesJEE MainJEE Main 2020 (09 Jan Shift 1)
Options:
  • A 212
  • B 214
  • C 1
  • D 2
Solution:
1509 Upvotes Verified Answer
The correct answer is: 212

214+216+348+.
S=214+18+116+..  ....i

14+18+116+...is an infinite G.P with  a=14, r=12 

S=a1-r=12

Using equation iS=2

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