Okay, I need help again.

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Posted by Jmiah on November 04, 2002 at 11:24:54:

Okay, here's the deal. I was doing a multiple choice test when I came across this one:

sqrt of (-16/7)=

A) 4/7 B) -4/7

C) 4(sqrt of 7)/7 (i) D) 4/(7i)

This is what i figured:

(sqrt of -16)/(sqrt of 7)=

4i/sqrt of 7=

4i(sqrt of 7)/7

The closet answer they have is C, which is also what they had listed in the book. I need to know how they got what they did. I don't have any clue how they seperated the i from the rest of the equation. Also, i IS sqrt of -1, or an imainary number.

THANX‼‼‼‼‼
_{_}
P.S. C) is 4_\|7 over 7, times i

Follow Ups:

Sorry, last part is bad, fixed it. Jmiah 11:26:34 11/04/02 (3)
- Re: Sorry, last part is bad, fixed it. Joel 11:35:49 11/04/02 (2)
  - ¿So mine is just written out differrent? Jmiah 11:08:41 11/05/02 (1)
    - si, senor Joel 18:47:30 11/05/02 (0)

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: Okay, here's the deal. I was doing a multiple choice test when I came across this one: : sqrt of (-16/7)= : A) 4/7 B) -4/7 : C) 4(sqrt of 7)/7 (i) D) 4/(7i) : This is what i figured: : (sqrt of -16)/(sqrt of 7)= : 4i/sqrt of 7= : 4i(sqrt of 7)/7 : The closet answer they have is C, which is also what they had listed in the book. I need to know how they got what they did. I don't have any clue how they seperated the i from the rest of the equation. Also, i IS sqrt of -1, or an imainary number. : THANX‼‼‼‼‼ : _ : P.S. C) is 4\|7 over 7, times i

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