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Ainat [17]
3 years ago
6

Find the value of n in n5=32

Mathematics
2 answers:
g100num [7]3 years ago
6 0

Answer:

2

Step-by-step explanation:

n^5=32

If you take the fifth root of both sides, you get n=2. You also know that n can't be 2 or -2, because when you raise a negative number to an odd numbered exponent, you get a negative and not a positive number. Hope this helps!

timama [110]3 years ago
3 0

Answer:

Step-by-step explanation:

n^{5}=32=2×2×2×2×2=2^5

n=2

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Ah, this is an infinite sum question, or a sum of geometric sequence
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sum of geometric sequence is
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so
we want it to equal 1.99 so

1.99= \frac{1(1- (\frac{1}{2})^n)}{1-\frac{1}{2}}
1.99= \frac{(1- (\frac{1}{2})^n)}{\frac{1}{2}}
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\frac{1.99}{2} = 1- (\frac{1}{2})^n
times -1
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divide both sides by ln(1/2)
\frac{ln(\frac{0.01}{2})}{ln(\frac{1}{2})} =n
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