If a2+b2+c2+2=0 and f(x)=∣∣ ∣ ∣∣1+a2x(1+b2)x(1+c2)x(1+a2)x1+b2x(1+c2)x(1+a2)x(1+b2)x1+c2x∣∣ ∣ ∣∣ then f(x) is poynomial of degree
If a2 +b2 + c2 =-2 and
then f(x) is a polynomial of degree