3 years ago

What is the length of the radius of a circle with a center at 2 – i and a point on the circle at 8 + 7i?

Mathematics

2 answers:

Vesnalui [34]3 years ago

7 0

Answer:

Step-by-step explanation:

The radius is the magnitude of the complex number that is the difference between any point on the circle and the center point. A suitable calculator can tell you that magnitude:

║(8+7i) - (2-i)║ = √((8-2)² +(7-(-1))²) = √(36+64) = √100 = 10

statuscvo [17]3 years ago

7 0

Answer:

Step-by-step explanation:

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