Question

If x² + 1/x² = 27 then find the value of x + 1/x

Answer 1

Hey there!!!

given that:

=> x² + 1/x² = 27

Adding 2 both the sides...we get,

=> x² + 1/x² + 2 = 27+2

=> (x + 1/x)² = 29

=> x + 1/x = ±√29 ans.

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thanks