Recently Replied Questions

• Application of Derivatives
  *Image* ...
  0·10· #Mathematics#Calculus
  replied2013-07-05 06:57:54
• QOD-31/05/13
  Pn= (1+x)(1-x2)(1+x3)....(1-x4n)/[(1+x)(1-x2)(1+x3)....(1-x2n)]2 Find lim(x→-1)Pn ...
  0·4· #Miscellaneous#Question Of the Day
  replied2013-05-31 00:56:07
• QOD-28/05/13
  a,b,c are in AP & a2,b2,c2 are in HP, then prove that a=b=c or a,b,-c/2 are in GP ...
  0·1· #Miscellaneous#Question Of the Day
  replied2013-05-31 00:43:00
• Parabola
  The circle x2+y2+2kx=0,k belongs to R,touches the parabola y2=4x externally.Then (a)k>0 (b)k<0 (c)k>1 (d)none of these Ans is (a). i have put y2=4x in the eq.of the circle.and in the quad.of x,i put b2=4ac.i got k=-2 ...
  0·3· #Mathematics#Co-ordinate Geometry
  replied2013-04-02 07:45:58