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wel
4 years ago
14

How was this answered? i don't know how, pls. help​

Mathematics
1 answer:
ratelena [41]4 years ago
3 0

Answer:

see explanation

Step-by-step explanation:

Using \sqrt{-1} = i, then i² = (\sqrt{-1} )² = - 1

and i³ = i² × i = - 1 × i = - i

also

i^{4} = i² × i² = - 1 × - 1 = 1

We can surmise that i raised to any multiple of 4 will equal 1

Given

i^{35} ( note 35 = 32 + 3 and 32 is a multiple of 4 ), thus

= i^{32+3}

= 1 × i³ = - i

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What times what equals 36 and add up to 11
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Write 3 × 3 × 3 × 3 × 3 × 3 using exponents. a. 123 b. 36 c. 63 d. 94
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5 0
3 years ago
Read 2 more answers
What is the standard deviation of the following data? 52 61 31 44 47 45 25 48 47
Elena-2011 [213]
Standard deviation is calculated by
1. calculate mean, m
2. calculate deviation of EACH entry of data set from the mean, i.e.
d=(x-m)
3. calculate mean of square of deviations (d^2)/n to get variance,v
4. take square-root of variance to get standard deviation.

For example,
To find the standard deviation of data set {3,7,8}
1. mean=(3+7+8)/3=6
2. deviations, di={3-6,7-6,8-6}={-3,1,2}
3. squares of deviations, di^2={9,1,4}
4. mean of squares of deviations=(9+1+4)/3=14/3
Standard deviation=sqrt(14/3)=2.16

For the given data set, if you follow the above steps, you would get
sum=400
mean=400/9
variance (mean square of deviations)=8246/81
standard deviation=sqrt(8246/81)=sqrt(8246)/9


3 0
3 years ago
Please help give me the brainliest answer
motikmotik

Answer:

±2\sqrt{6}i

Step-by-step explanation:

±√24

±√-1 √24

±√24 i

±2√6 i

8 0
3 years ago
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