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  1. If, a + b + c = 0, the value of
    a2
    		 +
    b2
    		 +
    c2
    		is
    bcca
    		ab
    1. 2
    2. 3
    3. 4
    4. 5
Correct Option: B

Given in the question ,
If a + b + c = 0
then a3 + b3 + c3 = 3abc
Dividing both sides by abc

a3
 +
b3
 +
c3
 =
3abc
abcabc
abc
abc

a2
+
b2
 +
c2
= 3
bcca
ab


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