Question

x+1/x=3then find the value of x2+1/x2 by using identities​

Answer 1

Answer:7

Step-by-step explanation:

Given : x+(1/x)=3....(1)

To find:x^2+(1/x^2)=?

Squaring equation (1), we get

{x+(1/x)}^2=(3)^2

Or, x^2+(1/x^2)+2*x*(1/x)=9

Or, x^2+(1/x^2)+2=9

Therefore,

x^2+(1/x^2)=7

Answer 2

Answer:

1

x² + – = 7

x²

Step-by-step explanation:

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