x-1/x=7
,find x+1/x
please help
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Answered by
1
Answer:
I can't understand that question
Answered by
1
Step-by-step explanation:
x -1/x= 7
on squareing both side
(x -1/x)²= 7²
x²+1/x²-2=49
x²+1/x²=51
x²+1/x²+2=51+2
(x+1/x)²=53
x+1/x=√53
#666
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