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Class 9 Mathematics Sequences and Progressions Sum of first n natural numbersHard

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Find the value of (S_{29}+S_{58}+S_{87}).

Answer and explanation

Correct answer: (5974)

(S_{29}=435), (S_{58}=1711), and (S_{87}=3828), so the total is (5974). Add the three different indices carefully.

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Math Sequences Natural-Numbers Sum Sum Of First N Natural Numbers Sequences And Progressions Mathematics Class 9 Mcq

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