Norma keeps immaculate records on her car. Each time she fills up her car with gas she records the odometer reading and the numb
1 answer:
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Answer:
If (a and b )≤ 0 then is disproved
Step-by-step explanation:
If a and b are positive real numbers then:
But if a and b are negative then this axiom is not true as log is not defined
= undefined
So if (a and b )≤ 0 then and
are undefined but
is defined.