Question 235124
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*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 2\ <\ 10\ -\ 4k\ <\ 6]


Add -10 to all three parts of the compound inequality:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ -8\ <\ -4k\ <\ -4]


Multiply all three parts by *[tex \Large -\frac{1}{4}], but remember to change the sense of the inequality when multiplying by a negative:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 2\ >\ k\ >\ 1]


And then put it in natural order:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 1\ <\ k\ <\ 2]


Draw an number line.  Draw a little OPEN circle on the 1.  Draw a little OPEN circle on the 2.  Make the line between the two circles a nice fat line.


John
*[tex \LARGE e^{i\pi} + 1 = 0]
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