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Math Chapter Wise question with answer

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Question #45,024
Math Chapter Wise Sequences And Series (A.p., G.p., H.p.) English MCQ Rajasthan TGT 2016

Q.If a, b, c are the pth, qth and rth terms respectively of an arithmetic progression and also the pth, qth and rth terms of a geometric progression, then ab–c bc–a ca–b is equal to

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