SOLUTION: The distance between the two points A(a,1,2) and B(5,a,3) is 3. Find the value of .
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Question 748072: The distance between the two points A(a,1,2) and B(5,a,3) is 3. Find the value of .
Answer by tommyt3rd(5050) (Show Source): You can put this solution on YOUR website!
If you mean find the value of a, then here we go:
It's convenient to use distance squared in this case (why?)
and after some simplifying and rearranging
then
which is a perfect square and tells us a=3
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