Question

2. Find the value of x square + 1/x square if x + 1/x = 3​

Answer 1

X + 1/x = 3…(i)

We know , (X+1/x)^2 = x^2 + (1/x)^2 + 2(x * 1/x)

=> (X+1/x)^2 = x^2 + (1/x)^2 + 2

Substituting value from (i) (3)^2 = x^2+(1/x)^2+2

= 9–2 = x^2+(1/x)^2

Ans. X^2 + (1/x)^2 = 7.

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Answer 2

Answer:

x^2+1/x^2

=(x+1/x)^2-2×x×1/x

=(3)^2-2

=9-2

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

Step-by-step explanation:

if you used the identity and algebraic formula then you find the answer