4+√2 2+2 = a-ſb. 14. Find a and b, if
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If we sum the above series, we find that 4 + 2 + 0 - 2 - 4 - 6 - 8 = -14. Therefore, we need n = 7 terms to give the sum as -14 and the final term is a = -8, which answers the question. ... The sum of three numbers in A.P is 12, and the sum of their cube is 288. Find the number.
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