Probability please need helpp
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Mathematics, 21.06.2019 19:30
If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).
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Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct
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