A community for students.
Here's the question you clicked on:
 0 viewing
k.rene.s
 2 years ago
Simplify the number using the imaginary unit i:
(square root) 28
options:
a. 2(square root) 7
b. 2(square root) 7
c. i(square root) 28
d. 2i(square root) 28
k.rene.s
 2 years ago
Simplify the number using the imaginary unit i: (square root) 28 options: a. 2(square root) 7 b. 2(square root) 7 c. i(square root) 28 d. 2i(square root) 28

This Question is Closed

SheldonEinstein
 2 years ago
Best ResponseYou've already chosen the best response.4Ok so it is \[\large{\sqrt{28}}\] Correct?

CliffSedge
 2 years ago
Best ResponseYou've already chosen the best response.0Factor 28 first to find the perfect square. and remember that i=√(1)

SheldonEinstein
 2 years ago
Best ResponseYou've already chosen the best response.4\[\large{\sqrt{28} = \sqrt{1}\sqrt{28} = \sqrt{1} \sqrt{4*7}}\]

SheldonEinstein
 2 years ago
Best ResponseYou've already chosen the best response.4So it will be \[\large{(\sqrt{1}) 2\sqrt{7} }\]

SheldonEinstein
 2 years ago
Best ResponseYou've already chosen the best response.4Now as we know that \[\large{\sqrt{1} = i (\textbf{IOTA})}\]

SheldonEinstein
 2 years ago
Best ResponseYou've already chosen the best response.4So we have answer : \(\large{ i \sqrt{28} }\)

k.rene.s
 2 years ago
Best ResponseYou've already chosen the best response.0Yes thanks for both of your help and Sheldon for explaining so well :)

SheldonEinstein
 2 years ago
Best ResponseYou've already chosen the best response.4You're welcome and thanks for the appreciation.

CliffSedge
 2 years ago
Best ResponseYou've already chosen the best response.0i√28 is not fully simplified.

SheldonEinstein
 2 years ago
Best ResponseYou've already chosen the best response.4Options have isqrt{28}

SheldonEinstein
 2 years ago
Best ResponseYou've already chosen the best response.4Hence no need to simplify further.

CliffSedge
 2 years ago
Best ResponseYou've already chosen the best response.0Ah, yes. After a second look 2i√7 isn't an option.

SheldonEinstein
 2 years ago
Best ResponseYou've already chosen the best response.4Yeah, at first I thought the same and hence simplified it further but when saw the options again , I got to see the option i sqrt{28}...
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.