Question

Which of the following is the correct notation for the complex number -31+ sqrt-36

a. -31+6t
b. 31-6t
c. -31+ sqrt-6
d. -31- sqrt6

Answer 1

For 6t do you mean 6i?

Answer 2

Because the square root of a negative number "sqrt -36" gives you an imaginary number, which is shown by "i".

Answer 3

Therefore you take "sqrt -36" and replace the negative with an imaginary number "i" and then tale the sqrt of 36, which gives you 6i.

Answer 4

yea 6i sorry

Answer 5

\[\sqrt{-36} = i \sqrt{36}= 6i\]

Answer 6

So after you do that you have -31 + 6i.

Answer 7

so i t would not be sqrt61

Answer 8

Where did you get sqrt 61?

Answer 9

i dont know just making sure :/ lol

Answer 10

thank you

Answer 11

No problem.