+0  
 
+1
48
2
avatar+443 

I was doing my math on this calculator when I came to a problem that required me to find a and b for the setup \(solve(ab=11,a+b=6)\)

I put it in the calculator and I got: {ab=11, a=6-r1, b=r1}.

What is the r1, and where is it coming from?

helperid1839321  Nov 4, 2017
Sort: 

2+0 Answers

 #1
avatar+26329 
+3

The calculator doesn’t understand your implicit multiplication, so you need to enter a*b=11, not ab =11. If you do this the calculator produces the correct two (complex) results.

In your case, the calculator simply ignored the ab=11 part and assigned an arbitrary variable, r1, to b and then solved for a as a = 6 - b → 6 - r1.

Alan  Nov 5, 2017
 #2
avatar+443 
0

Thank you!

cool

helperid1839321  Nov 9, 2017

8 Online Users

avatar
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details