Question

if x+1/x=7 find the value of x-1/x​

Answer 1

Step-by-step explanation:

(x+1/x) ²=x²+1/x²+2

(7)²=x²+1/x²+2

49=x²+1/x²+2

49-2=x²+1/x²

x²+1/x²=47

(x-1/x) ²=x²+1/x²-2

(x-1/x) ²=47-2

(x-1/x) ²=45

x-1/x=√45

hope it helps you