I'm sorry for posting this here, but I would like to confirm my doubt about the correctness of the systems of equation in the textbook example. I enclosed an image.
Asked
Active
Viewed 43 times
0
jhuk
- 359
-
Looks like a typo to me. should be $+2C$. – Gregory Grant Feb 03 '16 at 16:55
-
Yeah it must be $2A+1=0$ and $3A-3B+2C=0$. – Rubertos Feb 03 '16 at 16:55
-
And the $2A-1$ is also wrong, should be $2A+1$. – Gregory Grant Feb 03 '16 at 16:56
-
I've never read a math textbook in my life that didn't have at least some typos. And I've read many math textbooks, probably a hundred. – Gregory Grant Feb 03 '16 at 16:57
-
Thanks all for your comments! – jhuk Feb 03 '16 at 16:57