Questions asked by carka

• Back to user's profile
• If the roots of l(m-n)x²+m(n-l)x+n(l-m)=0 are equal then prove that m=2ln/(l+n) ?
  
• OH | CH2 | C=O | CH-CH2-Br | C=O | CH3 What is the IUPAC nomenclature of this compound ?
  
• If tan A=n tan B and sin A = m sin B then show that cos²A=(m²-1)/(n²-1) ?
  
• ABCD is a square. P and Q are points on BC and CD, respectively, such that BP=3PC and CQ=QD. Prove that AQ=2PQ and APQ=CPQ?
  
• Prove that (tanA/(1-cotA))+(cotA/(1-tanA))=secA.cosecA+1?
  
• #asqrt(a)+bsqrt(b)=183# and #asqrt(b)+bsqrt(a)=182# Find #9/5(a+b)# ?