Question

if (x square + 1/x square) =79 then the value for x+1/x​

Answer 1

Answer:

9

Given:

x^2 + 1/x^2 = 79

To find:

Value of x+1/x

Solution:

(x+1/x)^2

=> x^2+1/x^2+2×x×1/x

=> 79+2 = 81

(x+1/x)^2 = 81

=> x+1/x = √81

=> x+1/x = 9.

Answer 2

Step-by-step explanation:

x²+1/x²=79

x²+1/x²+2×x×1/x

=(x+1/x)²

=(81)

x+1/x=9

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