Question

If x^2+1/x^2=102 then what is x-1/x

Answer 1

Answer:

Step-by-step explanation As x^2+1/x^2= (x-1/x)^2 therefore (x-1/x)^2=x^2+1/x^2-2 as x^2+1/x^2=102. Given therefore (x-1/x)^2=102-2=100 x-1/x=10