ICSE Class 9 Answered
If X+1/X=√5
Then x-1/X=?
x2-1/X2=?
Asked by kavitadpssaini86 | 05 May, 2019, 09:39: PM
Expert Answer
x + 1/x = √5
x + 1/x = 5
(x - 1/x)2 = (x + 1/x)2 - 4
(x - 1/x)2 =5 - 4
(x - 1/x)2 = 1
x - 1/x = 1
Answered by Sneha shidid | 06 May, 2019, 10:13: AM
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