If `|{:(p,-q,0),(0,p,q),(q,0,p):}|=0`, then which one of the following is correct ?

If p > 0, q < 0 then which of the following is correct ?

If p and q are the roots of x^2 +px + q = 0 , then which one of the following is correct ?

|(0,p-q,p-r),(q-p,0,q-r),(r-p,r-q,0)|=

If p,q in N and 0,12=(p)/(q) where p and q are relatively prime then identify which of the following is incorrect

If a(p+q)^2+2b p q+c=0 and a(p+r)^2+2b p r+c=0 (a!=0) , then which one is correct? a) q r=p^2 b) q r=p^2+c/a c) none of these d) either a) or b)

If a(p+q)^2+2b p q+c=0 and a(p+r)^2+2b p r+c=0 (a!=0) , then which one is correct? a) q r=p^2 b) q r=p^2+c/a c) none of these d) either a) or b)

If a(p+q)^2+2b p q+c=0 and a(p+r)^2+2b p r+c=0 (a!=0) , then which one is correct? a) q r=p^2 b) q r=p^2+c/a c) none of these d) either a) or b)

If a(p+q)^2+2b p q+c=0 and a(p+r)^2+2b p r+c=0 (a!=0) , then which one is correct?