Wednesday

January 18, 2017
Posted by **teri** on Thursday, April 1, 2010 at 9:03am.

1. ã-121 =

iã11

2. -2ã-144 =

2iã144 =

2i*12=24i

3. ã-75 =

i=ã75 =

iã5sq*3 =

5iã3

4. 5ãã-27 =

5iã27 =

5iã3sq*3 =

15iã3

what about

5. ã-6 * ã2 = ??

- algebra 2 -
**Reiny**, Thursday, April 1, 2010 at 9:20amI will assume that your ã was supposed to come out as √

I disagree with #2

-2√-144

= -2i√144

= -2i(12)

=-24i (you lost the negative sign)

Also I will assume that in#4, the double square root was a typo

If so, then the rest were correct. - algebra 2 -
**Reiny**, Thursday, April 1, 2010 at 9:29am#5

√-6√2

= i√12

= 2i√3 - algebra 2 -
**teri**, Thursday, April 1, 2010 at 9:31amyes to #4 i don't know how they symbols don't come out when i type them one way.

Can you help with #5? I didn't get it.

Thank you. - algebra 2 -
**teri**, Thursday, April 1, 2010 at 9:32amsorry, i see #5 THANK YOU!

- For a √ sign -
**Reiny**, Thursday, April 1, 2010 at 9:37amIf you are on a Mac...

hold down the "Option" key and press V, then release to get the √

There are a whole bunch of those shortcuts, like hold down the "Option" key, and press p to get π

on a PC , I hold down the Alt key, and while holding it down, pres 251 on the number pad, then release. You should get a √ sign

Again just like on a Mac, you can experiment with these on a PC to get different symbols

e.g. try "Alt" 241 to get ± - algebra 2 -
**bobpursley**, Thursday, April 1, 2010 at 12:56pm±âˆš