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Nostrana [21]
3 years ago
12

The radius of a sphere is 5.5 inches. What is the surface area of the sphere? Express the answer in terms of Piin.Squared. Recal

l the formula S A = 4 pi r squared. 22 44 88 121
Mathematics
2 answers:
ikadub [295]3 years ago
7 0

Answer:

121

Step-by-step explanation:

EDG 21

erastova [34]3 years ago
7 0

Answer:

121

Step-by-step explanation:

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Find the coefficient of the squared term in the simplified form for the second derivative, f "(x) for f(x) = (x3 + 2x + 3)(3x3 −
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3 years ago
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Tìm căn bậc hai của số phức z=1+i√3
Anni [7]

Write <em>z</em> in polar form:

<em>z</em> = 1 + √3 <em>i</em> = 2 exp(<em>i</em> <em>π</em>/3)

Taking the square root gives two possible complex numbers,

√<em>z</em> = √2 exp(<em>i</em> (<em>π</em>/3 + 2<em>kπ</em>)/2)

with <em>k</em> = 0 and <em>k</em> = 1, so that

√<em>z</em> = √2 exp(<em>i</em> <em>π</em>/6) = √(3/2) + √(1/2) <em>i</em>

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√<em>z</em> = √2 exp(<em>i</em> 7<em>π</em>/6) = -√(3/2) - √(1/2) <em>i</em>

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