Question

pls some one answer this question, i will mark it as brainliest​

Answer 1

Here,

n-1/n=7....

on squaring both sides we get,

( n-1/2)^2 = (7)^2

n^2+1/n^2=49

hope it. helps

Answer 2

Hey mate here is your answer !!!!!!

Its given x-1/x=7

so,

(x-1/x)²=7²

x²+1/x²-2=49

x²+1/x²=49+2

x²+1/x²=51

so ,the value of-

x²+1/x²=51... Ans

Hope it helps to you