The points (p,q +r) , (q, r+p) and (r, q+p) are `"_______"`.

Show that the points (p , q , r) , (q , r , p) and (r , p , q) are the vertices of an equilateral triangle.

Add: p ( p – q), q ( q – r) and r ( r – p)

Add p(p-q),q(q-r) and r(r-p)

Add: p(p-q),q(q-r) and r(r-p)

Add : p(p-q),q(q-r) and (r-p)

a^(p-q) . a^(q-r) . a^(r-p) = _____________

If p, q, r are in A.P the p^(2) (q + r), q^(2) (r + p), r^(2) (p+q) are in