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If x2 − 6x − 1 = 0, find x-1/x. - Mathematics
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Question
If x
2
− 6x − 1 = 0, find `x-1/x`.
Sum
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Solution
Show Solution
x
2
− 6x − 1 = 0
⇒ x
2
− 1 = 6x
⇒ `(x^2−1)/x=6`
⇒ `x-1/x=6`
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Q 7. (i)
Q 6. (ii)
Q 7. (ii)
Chapter 3: Expansions - EXERCISE B [Page 36]
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B Nirmala Shastry Mathematics [English] Class 9 ICSE
Chapter 3 Expansions
EXERCISE B | Q 7. (i) | Page 36
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