Datrys ar gyfer a, b
a=\sqrt{13}+4\approx 7.605551275\text{, }b=4-\sqrt{13}\approx 0.394448725
a=4-\sqrt{13}\approx 0.394448725\text{, }b=\sqrt{13}+4\approx 7.605551275
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Enghreifftiau
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