What is the value of Z?
1) z^2 =49
z = 7 or -7 Insuff
2) z< 1/z
there are lots of values which statisfy this so Insuff
taking together ....proves that 49<1 wrong ....
cool_jonny009, never make a mistake of ignoring sign in inequalities
if z < 1/z we cannot say z^2 < 1, what id z is -ve?
Whether you think you can or think you can't. You're right! - Henry Ford (1863 - 1947)