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Three terms are in arithmetic progression such that their sum is 36 and product is 1296. Find the three terms.a.4, 12, 20b.9, 12, 15c.8, 12, 16d.6, 12, 18

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Solution

The three terms in an arithmetic progression can be represented as (a-d), a, (a+d), where a is the middle term and d is the common difference.

Given that the sum of the three terms is 36, we can write the equation:

(a-d) + a + (a+d) = 36 3a = 36 a = 36/3 a = 12

The product of the three terms is given as 1296, so we can write the equation:

(a-d)a(a+d) = 1296 12*(12-d)(12+d) = 1296 (12-d)(12+d) = 1296/12 (12-d)*(12+d) = 108 144 - d^2 = 108 d^2 = 144 - 108 d^2 = 36 d = sqrt(36) d = 6

So, the three terms are (12-6), 12, (12+6) or 6, 12, 18. Therefore, the correct answer is d.6, 12, 18.

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