IF the direction ratios of two vectors are connected by the relations `p + q + r = 0` and `p^(2) + q^(2) - r^(2) = 0.` Find the angle between them.

If the direction ratio of two vectors are connected by the relations a+b+c=0 and a^(2)+b^(2)=c^(2). then the angle between two vectors

find the direction ratios of the vector, joining the points P(2,3,0) and Q(-1,-2,-3) direction from P to Q.

If the resultant of two vectors vec P and vec Q is given by R^(2) = P^(2) + Q^(2) , then the angle between the vectors vec P and vec Q is _____.

Choose the incorrect option. The two vectors vec(P) and (Q) are drawn from a common point and vec( R ) = (P) + (Q), then angle between (P) and (Q) is

Choose the incorrect option. The two vectors vec(P) and (Q) are drawn from a common point and vec( R ) = (P) + (Q), then angle between (P) and (Q) is

Three vectors vec(P), vec(Q), vec(R) obey vec(P) + vec(Q) = vec(R) and P^(2) + Q^(2) = R^(2) the angle between vec(P) & vec(Q) is

If the roots of x^(3)+px^(2)+qx+r=0 are in GP find the relation between p,q and r

If the ratio of the roots of the equation x^2-px+q=0 be 1:2 , find the relation between p and q.