x2+1/x2=79 find x+1/x
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Answered by
28
Hi!!!!! Here is our answer
x + 1/x =?????? (to find)
(x + 1/x)2= x2+ 1/x2+ 2
x2+1/x2= 79, given
So, we can also write ad
x2+1/x2+2=79+2
x2+1/x2+2=81
Then, x+1/x =√81
x+1/x=9
Hope u got it
x + 1/x =?????? (to find)
(x + 1/x)2= x2+ 1/x2+ 2
x2+1/x2= 79, given
So, we can also write ad
x2+1/x2+2=79+2
x2+1/x2+2=81
Then, x+1/x =√81
x+1/x=9
Hope u got it
Answered by
1
Given,x²+1/x²=79
(x+1/x)²=81 ,x+1/x=9
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