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11-10-2018
Mathematics

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Use the complex conjugate to find the absolute value of 8+12i

A. 12
B.Square root of 208
C. Square root of 84
D. 8

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Bay12Rupp Bay12Rupp

11-10-2018

Answer:

A. 12

Step-by-step explanation:

i= use complicated conjugate to search out definite quantity of 8 + 12i

i = 12i

i= twelve × ei 90°

i = twelve × (cos 90° + i sin 90°)

r = |i| = twelve

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