Question

please tell the answer of all the three parts..please..

will mark your answer as brainliest​..solve and tell..PLEASE​

Answer 1

Step-by-step explanation:

Hope its helpful please mark me as brainliest

Answer 2

Answer:

Your answer is below in explanation if you like the answer please mark me brainleast and also click on Heart and also Follow

Step-by-step explanation:

1:-

${x}^{2} + (\frac{1}{x})^{2} = (x + x) ^2 \\ = {x}^{2} + ( { \frac{1}{x}) }^{2} + 2$

2:-

$x + \frac{1}{x} = (x - \frac{1}{x}) \: (x - \frac{1}{x} )$

3:-

${x}^{3} + (\frac{1}{x})^{3} = {x}^{3} + ( \frac{1}{x} )^{3} + 3 {x}^{2} \times \frac{1}{x} + 3x \times \frac{ 1}{x}^{2} \\ = {x}^{3} + ( \frac{1}{x} ) ^{3} + 3x + 3 \times \frac{1}{x} \: \: \: \: \: \: (ans)$