Question

If (x – 1/x) = 15 , then find the value of (x2+ 1/x2)​

Answer 1

Answer:

223

Step-by-step explanation:

x-1/x=15

square on both the sides

(x-1/x)2=15×15

x2+(1/x)2-2(x)(1/x)=225

x2+1/x2=223