Rationalize the denominator and simplify.. help please
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Rationalize the denominator and simplify.. help please

[From: ] [author: ] [Date: 13-07-04] [Hit: ]
. . . . . .......
Rationalize the denominator and simplify

_____7_____
√7 + 1

-
7 / [√(7) + 1] = 7[√(7) − 1] / [√(7) + 1][√(7) − 1]
. . . . . . . . . .= 7[√(7) − 1] / (7 - 1)
. . . . . . . . . .= 7[√(7) − 1] / 6

-
7 (√7 - 1)
---------------------
(√ 7 + 1)(√ 7 - 1)

7 (√7 - 1)
----------------
6
1
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