History of Hindu Mathematics: A Source Book v2.c17.s20.26
History of Hindu Mathematics: A Source Book v2.c17.s20.26
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v2.c17.s20.26
It will be noticed that the equation (2) can be reduced, by dividing out by *x* + *y*, to $x² - xy + y² = x + y ;$ and similarly (5) can be reduced to $x + y = 1.$