Question
The third proportional to (x² – y²) and (x–y)
is:Solution
Let the third proportional z. ATQ- (x² – y²) :(x–y): (x–y): z z × (x² – y²) = (x–y) × (x–y) =(x–y) × (x–y) / (x² – y²) =(x-y)/(x+y).
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