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Mathematics, 17.05.2021 16:20 india73

If Y - 1 by Y is equal to 9 find y square minus 1 by y square and y cube minus 1 by y cube. no links plz

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If Y - 1 by Y is equal to 9 find y square minus 1 by y square and y cube minus 1 by y cube. no link...
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