If y²(1-x²)=x²+1 then prove that (1-x⁴)(dy/dx)²=y⁴-1

1.	If y²(1-x²)=x²+1 then prove that (1-x⁴)(dy/dx)²=y⁴-1
Answer» If y²(1-x²)=x²+1 then prove that (1-x⁴)(dy/dx)²=y⁴-1

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