if x^2+1/x^2=7 then find the value of x+1/x
Answers
Answered by
0
Answer:
8
Step-by-step explanation:
(x+1/x)2
= x2+1/x2 + 1
= 7 + 1.
= 8
Answered by
1
Answer:
I need the brilliant answer
Step-by-step explanation:
X²+1/X²=7
x²+(1/x)²=7
(x+1/x)²-2.x.1/x=7
(x+1/x)²-2=7
(x+1/x)²=9
x+1/x= 3
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