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Question number 5 of exercise 9.4 …

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Question number 5 of exercise 9.4 Ncert.
  • 1 answers

Anurag Pokhriyal 8 years, 1 month ago

We are given that we have to find out the sum of the squares of first 20 terms, here we will use the formula of (the sum of squares of first n terms)....n(n+1)(2n+1)/6
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