[" Furfating aram "9.3],[[" (i) "4p,q+r," (ii) "ab,a-b],[" (v) "pq+qr+rp,0," (iii) "a+b,7a^(2)b^(2)],[" (v) "pq+qr+rp,0,],[" Firon "," IT afforc: "]]

Carry out the multiplication of the expressions in each of the following pairs. (i) 4p,q+r (ii) ab,a-b (iii) a+b, 7a^2 b^2 (iv) a^2-9, 4a (v) pq+qr+rp,0

Carry out the multiplication of the expressions in each of the following pairs.(i) 4p,q+r (ii) ab,a-b( iii) a+b,7a^(2)b^(2)( iv )a^(2)-9,4a(v)pq+qr+rp,0

If p sin alpha = q sin (120^(@) + alpha) = r sin (240^(@) + alpha),"prove that", pq + qr +rp = 0

Given pq + qr + rp = 0 find (1)/(p^(2)-qr) + (1)/(q^(2) -rp) + (1)/(r^(2) - pq) = ?

If (p^(2)+q^(2)), (pq+qr), (q^(2)+r^(2)) are in GP then prove that p, q, r are in GP.

Given pq + qr + rp = 0 find (p^(2))/(p^(2)-qr) + (q^(2))/(q^(2) -rp) + (r^(2))/(r^(2) - pq)= ?

(3p^(2)qr^(3)) xx (- 4p^(3)q^(2)r^(2))xx (7pq^(2)r) is equal to

If p,q & r are all non zero and p+q+r=0, prove that p^(2)/(qr)+(q^(2))/(rp)+(r^(2))/(pr)=3