Question

IF x+ 1/x=3 find the value of the following 1. x² + 1 /x²​

Answer 1

Step-by-step explanation:

x+1/x=3. , x^2+1/x^2=?

Formula:-

x^2+1/x^2=(x+1/x)^2. -2

=(3)^2. -2

=9–2

=7. Answer.

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Answer 2

Step-by-step explanation:

(x+1/x)² = (3)² {Squaring on both sides}

x²+1/x²+2×x×1/x=9

x²+1/x²= 9–2

x²+1/x²=7