" 15) "p(p-q),quad q(q-r)" and "r(r-p)" find the sum."

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)

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

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

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

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

7. Let A= {p, q, r}. Which of the following is an equivalence relation on A?(a) R, = {(p, q), (q, r), (p, r), (p, q)} (b) R2 = {(1,9).(,p), (r,r). (9,7)} (c) Rz = {(p, p), (q,9), (r, r), (p, q)} (d) one of these