Question

find the value of a^2+b^2+c^2-ab-bc-ca,if a=1,b=2,c=3​

Answer 1

Question:-

Find the value of a²+b²+c²-ab-bc-ca,if a=1, b=2,c=3

Solution:-

Given:- a=1

b=2

c=3

Put the value on given equation:- a²+b²+c²-ab-bc-ca

=> (1)²+(2)²+(3)²-1×2-2×3-3×1

=> 1+4+9-2-6-3

=> 14-11

=> 3

Answer:- 3