4 years ago

HELP FOR BRAINLIEST!

Mathematics

2 answers:

Tju [1.3M]4 years ago

7 0

Answer:

Step-by-step explanation:

When you take the square root of a negative number such as √(−49) you get an answer of ±7i. The reason is that −49 = −1*49.

Hope this helps!

ohaa [14]4 years ago

7 0

Answer:

Step-by-step explanation:

imaginary number (the number doesn't exist)

all square root has positive number inside the sign, but if the number is negative, we call it imaginary

√-1 = i

so i x i = -1

then

√-49 = √-1 * √49 = i * 7 = 7i

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