Question

The numbers α1, α2, α3 , and α4 are drawn one at a time from the set {0, 1,
2, …, 9}. If these four numbers are drawn with replacement, what is the
probability that α1α4 − α2α3 is an even number?

Answer 1

A gas can be liquified by the process of cooling and compressing. They can also be liquefied by applying a suitable pressure on it. The correct process used; cooling, compressing or applying pressure, depends from gases to gases keeping in mind their critical temperatures.

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Answer 2

Here's your answer dear