Solve the following equations :
x-1 x +1 x + 1
(i) x + 1 x - 1 x +1 =0
x + 1 x +1 X-1
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Answer:
We have
⇒x
2
−(
3
+1)x=−
3
⇒(x−
2
3
+1
)
2
=
4
−4
3
+(
3
+1)
2
⇒(x−
2
3
+1
)
2
=(
2
3
−1
)
2
⇒x−
2
3
+1
=±
2
3
−1
⇒x=
2
3
+1
±
2
3
−1
⇒x=
3
,1
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