Is |k| = 2 ?
(1) k^2 = 4
(2) k = |-2|
OA [spoiler]D
But I think it should be A . Please suggest[/spoiler]
(1) k^2 = 4
(2) k = |-2|
OA [spoiler]D
But I think it should be A . Please suggest[/spoiler]
from 1:
k^2 = 4
therefore k=2 or -2
in either case, |k|=2
Sufficient
from 2:
k=|-2| that is k=2
therefore again |k|=2
Sufficient
answer D
