If the roots of equation (q – r) x^2 + (r – p) x + p –q = 0 are equal then p, q, r are in:
a) AP b) GP c) HP d) None of these

• given roots r equal
  b^2=4ac
  solving lik dat rp=4q^2
  ans D
  
• 12 years agoHelpfull: Yes(1) No(0)
• i think its a>0
• 12 years agoHelpfull: Yes(0) No(3)
• see i calculated and got its two roots are p-q/q-r and 1 hence hp may be
• 12 years agoHelpfull: Yes(0) No(2)
• GP.. ,r=1/x
• 12 years agoHelpfull: Yes(0) No(0)