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Problem The vertices of a triangle are (0, 0), (1, 0) and (0, 1). Then excentre opposite to (0, 0) is
(1) ( − 1 2 , 1 + 1 2 ) \left(-\frac{1}{\sqrt{2}}, 1 + \frac{1}{\sqrt{2}}\right) ( − 2 1 , 1 + 2 1 ) ( 1 + 1 2 , 1 + 1 2 ) \left(1 + \frac{1}{\sqrt{2}}, 1 + \frac{1}{\sqrt{2}}\right) ( 1 + 2 1 , 1 + 2 1 ) ( 1 + 1 2 , 1 − 1 2 ) \left(1 + \frac{1}{\sqrt{2}}, 1 - \frac{1}{\sqrt{2}}\right) ( 1 + 2 1 , 1 − 2 1 ) ( − 1 2 , 1 − 1 2 ) \left(-\frac{1}{\sqrt{2}}, 1 - \frac{1}{\sqrt{2}}\right) ( − 2 1 , 1 − 2 1 ) Browse the problem library