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17-05-2019
Mathematics

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Use the imaginary number i to rewrite the expression:

Use the imaginary number i to rewrite the expression class=

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MathPhys MathPhys

17-05-2019

Answer:

D

Step-by-step explanation:

√(-49)

Let's rewrite this as:

√(-1) √(49)

√49 is 7, and √-1 is i. Therefore:

7i

Answer D.

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