Question on: JAMB Mathematics - 2009
Determine the value of x for which (x2 - 1) > 0
A
x < -1 or x > 1
B
-1 < x < 1
C
x > 0
D
x < -1
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Correct Option: A
x2 > 0
(x+1)(x-1) > 0
x > -1 or -1
x < -1 or x > 1
(x+1)(x-1) > 0
x > -1 or -1
x < -1 or x > 1
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