What side do DEC and EDB have in common?
2 answers:
<u><em>Answer:</em></u>
DE is the common side in the two triangles
<u><em>Explanation:</em></u>
The side of the triangle is named based on its start and end points
A triangle is named based on its three vertices where each two vertices would join forming a side
<u>For ΔDEC, the sides are:</u>
DE, EC and DC
<u>For ΔEDB, the sides are:</u>
ED, DB and EB
By comparing the two triangles, we would find that DE is the common side in both triangles
Note: The visual illustration is in the attached image
Hope this helps :)
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Answer:
Step-by-step explanation:
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And we have that the moment generating function can be write like this:
And we can write this as an infinite series like this:
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and we can use the property that the convergent power series can be equal only if they are equal term by term and then we have:
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And then we can find the
And we can find the variance like this :
And first we find:
And then the variance is given by: