Question

x-1/x=√5 find x+1/x​

Answer 1

HOPE THIS HELPS UUU....

Answer 2

$x - \frac{1}{x} = \sqrt{5}$

so,

${( x + \frac{1}{x})}^{2} = {(x - \frac{1}{x} )}^{2} + 4 \times x \times \frac{1}{x}$

now,

${(x + \frac{1}{x} )}^{2} = {( \sqrt{5} }^{2}) + 4 = 5 + 4 =9$

hence

$(x + \frac{1}{x} ) = \sqrt{9} = 3$

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