Last visit was: 27 Apr 2026, 09:17 It is currently 27 Apr 2026, 09:17
Home
Messages
Tests
Schools
Events
Close
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel
avatar
gmatxsurf
avatar
Joined: 09 Sep 2020
Last visit: 12 Jul 2021
Posts: 18
Own Kudos:
11
Given Kudos: 13
Posts: 18
Kudos: 11
1/c = c/1 = c^2 = 1 ??? 16 Sep 2020, 05:18
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Hi,

why 1/c = c/1 it equal to c^2 = 1 ???

thank you
avatar
chaitralirr
avatar
Joined: 17 Mar 2019
Last visit: 07 Oct 2021
Posts: 363
Own Kudos:
291
 [1]
Given Kudos: 35
Location: India
Concentration: Healthcare, General Management
Schools:
GPA: 3.75
WE:Pharmaceuticals (Healthcare/Pharmaceuticals)
Schools:
Posts: 363
Kudos: 291
 [1]
1/c = c/1 = c^2 = 1 ??? 16 Sep 2020, 05:53
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Hi,

1/c=c/1

if we cross multiply both sides we get C*C= 1*1

Therefore C^2=1

Hope this helps
User avatar
aviddd
User avatar
Joined: 26 Jul 2020
Last visit: 10 Mar 2021
Posts: 204
Own Kudos:
227
 [1]
Given Kudos: 66
Products:
My Reviews
Posts: 204
Kudos: 227
 [1]
1/c = c/1 = c^2 = 1 ??? 16 Sep 2020, 09:30
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
gmatxsurf
Hi,

why 1/c = c/1 it equal to c^2 = 1 ???

thank you
Show more

Basic cross multiplication.
User avatar
globaldesi
User avatar
Joined: 28 Jul 2016
Last visit: 23 Feb 2026
Posts: 1,140
Own Kudos:
2,000
 [1]
Given Kudos: 67
Location: India
Concentration: Finance, Human Resources
Schools: ISB '18 (D)
GPA: 3.97
WE:Project Management (Finance: Investment Banking)
Products:
My Reviews
Schools: ISB '18 (D)
Posts: 1,140
Kudos: 2,000
 [1]
1/c = c/1 = c^2 = 1 ??? 16 Sep 2020, 10:42
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
gmatxsurf
Hi,

why 1/c = c/1 it equal to c^2 = 1 ???

thank you
Show more

Nice question

this is actually
\(\frac{1}{c}- \frac{c}{1} =0\)
\(\frac{1-c^2}{c }= 0\)
now c can not be zero since then it becomes NAn
so \(1-C^2 =0\)
or \(c^2 =1\)
avatar
dep
avatar
Joined: 23 Feb 2018
Last visit: 07 Aug 2021
Posts: 82
Own Kudos:
119
Given Kudos: 23
Posts: 82
Kudos: 119
1/c = c/1 = c^2 = 1 ??? 16 Sep 2020, 11:00
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Also to add on
c = +1 or -1
avatar
liusam
avatar
Joined: 24 Sep 2020
Last visit: 04 Oct 2020
Posts: 4
Given Kudos: 3
Posts: 4
Kudos: 0
1/c = c/1 = c^2 = 1 ??? 27 Sep 2020, 02:18
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Kudos to those answers :)