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No.136614 [Report] +
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x²−61y²=1
x²=1+61y²
x=(1+61y²)/x

-61y²=1-x²
-y²=(1-x²)/61
-y=((1-x²)/61)/y
y=(((1-x²)/61)/y)*-1
Post number No.136614
Board Off-Topic@Heyuri
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