Question

if a²+b²+c²=ab+bc+ca,then find value of a+c/b​

Answer 1

Answer:

14

Step-by-step explanation:

We have (a+b+c)  

2

=a  

2

+b  

2

+c  

2

+2(ab+bc+ca)

⇒a  

2

+b  

2

+c  

2

=(a+b+c)  

2

−2(ab+bc+ca)

⇒a  

2

+b  

2

+c  

2

=(6)  

2

−2(11)

⇒a  

2

+b  

2

+c  

2

=36−22=14