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Let X be a real number. Is the modulus of X necessarily less than 3?
A. X(X+3)<0
B. X(X-3)>0
Considering statement A,Β X(X+3)<0 . Here values of x whichΒ satisfy are X=-2 , -1 .
Considering statementΒ B,Β X(X-3)>0 . Here values of x which satisfy are X = ..,-2,-1,4,5,6,... So using only statement 1 we know that uniquely modulus of x has to be less than 3. Hence,Β Β the question can be answered by one of the statements alone, but cannot be answered by using the other statement alone.
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