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If a1,a2,... & b1,b2... are two AP's such that a1 = 2, a10 = 3 & a1b1 = 1 = a10b10, then find a4b4.

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If a1,a2,... & b1,b2... are two AP's such that a1 = 2, a10 = 3 & a1b1 = 1 = a10b10, then find a4b4.

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Correct answer is 28/27

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