Question

Qn. 10 - 

10)a)If 2(a²+b²) = (a+b)², then show a=b​

Answer 1

Step-by-step explanation:

2(a^2+b^2)=(a+b)^2

=>2a^2+2b^2=a^2+b^2+2ab

=>2a^2-a^2+2b^2-b^2-2ab=0

=>a^2+b^2-2ab=0

=>(a-b)^2=0

=>a-b=0

=>a=b(proved)