Question

plz solve and send ​

Answer 1

Answer:

Is it from Class 8th Maths textbook? Well, your answer is in the attachment above.

Answer 2

Step-by-step explanation:

$= (x - \frac{1}{x} ) ^{2} \\ = {x}^{2} + \frac{1}{ {x}^{2} } - 2x \times \frac{1}{x} (since \: (a - b) ^{2} = {a}^{2} + {b}^{2} - 2ab) \\ = 83 - 2(since \: {x}^{2} + \frac{1}{ {x}^{2} } = 83) \\ = 81(eq1)$

$(x - \frac{1}{x} )^{2} = 81(from \: eq1) \\ x - \frac{1}{x} = \sqrt{81} \\ x - \frac{1}{x} = 9$

Hope it helpzz....