Mom4MBA wrote:Is x 0 or 5/3?
(1) x is an integer.
(2) The product of x and positive integer y is not x.
I have a question here, when it is given in the statement 1 that
x is an integer doesn't this mean that x will never be equal to 0 or 5/3 thus giving us a definite NO for our answer. I think statement 1 should be sufficient.
Zero is an integer (it is neither positive nor negative, nevertheless an integer)
If I am wrong then please someone explain me how we getting a NO after combining the statements.
Thank you.
The original Question was whether (4^x )^(5-3x)=1?
if (4^x )^(5-3x)=1; x =0 or 5/3
1) x is an integer - is not sufficient to conclude that (4^x )^(5-3x) is not equal to one (x can be 0 and that is only case when despite x being an integer (4^x )^(5-3x) is equal to 1)
2) x is not zero - is not sufficient to conclude that (4^x )^(5-3x) is not equal to one (x can be 5/3 and that is only case when (4^x )^(5-3x) is equal to 1)
Combining we can see that x is neither zero nor 5/3 , sufficient to conclude that (4^x )^(5-3x) is not equal to one
I think you did not look at the question as a whole and got confused
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