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Question

If a, b, c are pth, qth, and rth terms of a G.P., then (cb)p(ba)r(ac)q is equal to


A

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B

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C

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D

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Solution

The correct option is A

1


a = ARp1, b = ARq1, c = ARr1

(cb)p(ba)r(ac)q = (ARp1ARq1)p(ARq1ARp1)r(ARp1ARr1)q

= R(rq)p+(qp)r+(pr)q = R0 = 1


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