Question

A²=CA+CB in the above formula given C=½ and A=B,find the value of A​

Answer 1

Answer:

Step-by-step explanation:

Formula,

(a+b+c)  

2

=a  

2

+b  

2

+c  

2

+2ab+2bc+2ca

⇒(a+b+c)  

2

=a  

2

+b  

2

+c  

2

+2(ab+bc+ca)

Given,

ab+bc+ca=10,a  

2

+b  

2

+c  

2

=16

⇒(a+b+c)  

2

=16+2(10)

a+b+c=  

16+20

​  

=6