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Darya [45]
3 years ago
6

Which rational expression is equal to a positive whole number when evaluated?2 ^1/28 ^1/312 ^1/415 ^1/5

Mathematics
1 answer:
madreJ [45]3 years ago
3 0
<span>2 ^1/2
8 ^1/3  = (2³)^1/3 = 2
12 ^1/4
15 ^1/5

</span>
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Section 5.2 Problem 17:
Elina [12.6K]

This DE has characteristic equation

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xxMikexx [17]

Answer:

The answer is 4 + √15 .

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You have to get rid of surds in the denorminator by multiplying it with the opposite sign :

\frac{ \sqrt{5}  +  \sqrt{3} }{ \sqrt{5}  -  \sqrt{3} }

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