<h3>
Answer: E) 8i</h3>
Explanation:
By definition, i = sqrt(-1)
Which means,
sqrt(-64) = sqrt(-1*64)
sqrt(-64) = sqrt(-1)*sqrt(64)
sqrt(-64) = i*sqrt(8^2)
sqrt(-64) = i*8
sqrt(-64) = 8i
On the second line, I used the rule sqrt(x*y) = sqrt(x)*sqrt(y). The fourth line used the rule sqrt(x^2) = x when x is nonnegative.
Answer:
1 - 5i
Step-by-step explanation:
(-2 + 4i) + ( 3 -9i) = -2 + 4i + 3 - 9i
= -2 + 3 + 4i - 9i
= 1 - 5i
Answer:6842
Step-by-step explanation: 9378-2536=6842
Answer:
26 units
Step-by-step explanation:
