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DIRECTIONS for questions : Select the correct alternative from the given choices.
Find the sum of the first n terms of the series:
  • a)
  • b)
  • c)
  • d)
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
DIRECTIONS for questions : Select the correct alternative from the gi...
2 logx + 4 logx - 3 logy + 6 logx - 6 logy + 8 logx - 9 logy + + 2n logx - 3(n - 1) logy
Alternative Solution
This question can also be answered by eliminating the answer choices. By substituting n = 1, choices (b), (c) get eliminated and for n = 2; choice (d) is eliminated.
∴Only choice (a) can be the answer.
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Community Answer
DIRECTIONS for questions : Select the correct alternative from the gi...
2 logx + 4 logx - 3 logy + 6 logx - 6 logy + 8 logx - 9 logy + + 2n logx - 3(n - 1) logy
Alternative Solution
This question can also be answered by eliminating the answer choices. By substituting n = 1, choices (b), (c) get eliminated and for n = 2; choice (d) is eliminated.
∴Only choice (a) can be the answer.
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