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Question
Choose the correct alternative:
The sum up to n terms of the series `sqrt(2) + sqrt(8) + sqrt(18) + sqrt(32) + ...` is
Options
`("n"("n" + 1))/2`
2n(n + 1)
`("n"("n" + 1))/sqrt(2)`
1
Solution
`("n"("n" + 1))/sqrt(2)`
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