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[" 10.The number of values of 'r' satisf...

[" 10.The number of values of 'r' satisfying the "],[" equation,"39C_(3-1)-^(39)C_(r^(2))=^(39)C_(r^(2)-1)-^(39)C_(3r)" is "],[[" (A) "1," (B) "2," (C) "3," (D) "4]]

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