Is sqrt(x-3)^2=3-x
(1) x does not equal 3
(2) -x*abs(x)>0
If u see statement 2. for it to be true X should be <0
suppose X = -1
sqroot ( -1-3)^2 = 4 = 3-(-1)
hence sufficient .
Statement 1 doesnt say anything ,,
Hence B .
Hope it helps..
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Square root and absolute value
Source: Beat The GMAT — Data Sufficiency |
Sqrt(x-3)^2 = |x-3|
|x-3| = 3-x when x-3 < 0 ie x<3
Stmt 2 says x<0
So B is sufficient.
Thanks
Raama
|x-3| = 3-x when x-3 < 0 ie x<3
Stmt 2 says x<0
So B is sufficient.
Thanks
Raama
