Question

if y^2+1/y^2 =11 find y-1/y​

Answer 1

Answer:

$2 {y}^{2} + \frac{1}{ {2y}^{2} } = 11$

$\frac{ {4y }^{4} + 1 }{ {2y}^{2} } = 11$

$22 {y}^{2} = 4 {y}^{4} + 1$

$22 {y}^{2} - 4 {y}^{4} = 1$

sorry but after this solution your equation will be cancelled