Find the center and radius of the circle with the equation: (x - 5)² + (y + 1)² = 4

Mathematics

2 answers:

inna [77]3 years ago

7 0

Answer:

use circle equation,

center = 5, -1

radius = 2

WITCHER [35]3 years ago

5 0

Answer:

Step-by-step explanation:

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Ainat [17]

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Solving for variable 'x'.
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Set the factor '(4 + x2)' equal to zero and attempt to solve:
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The solution to this equation could not be determined.
This subproblem is being ignored because a solution could not be determined.

Subproblem 2

Set the factor '(2 + x)' equal to zero and attempt to solve:
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Move all terms containing x to the left, all other terms to the right.
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Set the factor '(-2 + x)' equal to zero and attempt to solve:
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8 0

3 years ago

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arsen [322]

Answer:

see explanation

Step-by-step explanation:

Using De Moivre's theorem

Given

[ 4(cos15° + isin15° ) ]³, then

= 4³ [ cos(3 × 15°) + isin(3 × 15°) ]

= 64 (cos45° + isin45° )