Question

if x + 1/2 = 10 ,find x^2+ 1/x^2

Answer 1

Answer:

98

Step-by-step explanation:

$(x+\frac{1}{x} } )=x^{2} +\frac{1}{x^{2} } +2\\Given, x+\frac{1}{x} } =10\\therefore, (10)^{2}-2 =x^{2} +\frac{1}{x^{2} }\\98=x^{2} +\frac{1}{x^{2} }$