If `a+b+c=0` then `a^(2)+b^(2)+c^(2)` is

If a + b + c = 0 and a^(2) + b^(2) + c^(2) = 4, them find the value of a^(4) + b^(4) +c^(4) .

If a+b+c=0 and a^(2)+b^(2)+c^(2)=1, then the value of a^(4)+b^(4)+c^(4) is

If a+b+c=0 and a^(2)+b^(2)+c^(2)=16, find the value of ab+bc+ca

If a+b+c=0 and a^(2)+b^(2)+c^(2)=1 then find the value of 2(a^(4)+b^(4)+c^(4))

If a+b+c=0 and a^(2)+b^(2)+c^(2)=1, then the value of a^(4)+b^(4)+c^(4) is 1 b.4 c.(1)/(2) d.(1)/(4)

If a+b+c=0 and a^(2)+b^(2)+c^(2)=1, then (a) ab+bc+ca=(1)/(2)( b) ab+bc+ca=(1)/(2)( c) a^(4)+b^(2)+c^(4)=(1)/(2)( d) a^(4)+b^(4)+c^(4)=(3)/(2)

If a+b+c =0 and a^(2)+b^(2)+c^(2)-ab-bc -ca ne 0, AA a, b, c in R then the system of equations ax+by+cz=0, bx +cy+az=0 and cx+ay+bz=0 has