1.

Find the 20th term of the series 3 + 12(3 + 5) + 13(3 + 5 + 7) + 14(3 + 5 + 7 + 9) + .........

Answer»

Find the 20th term of the series 3 + 12(3 + 5) + 13(3 + 5 + 7) + 14(3 + 5 + 7 + 9) + .........




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