if x +1/x=8 find x^2+1/x^2
Answers
Answer:
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Step-by-step explanation:
X+1/x=8
=x +1 =8x
8x - x = 1
7x=1
X=1/7
X^2 +1/x^2+2=?
(1/7)^2 +1 / (1/7)^2 +2
=( 1/49 )+1 / (1/49 ) +2
=(50/49) / (99/49)
=50/99