Question

in triangle abc d and e are two points on bc of such that bd = ce and ad=ae shoe triangle abd is congruent to ace

I Want to learn

Sequence and series

Ncrt math class 12 ex6.2

integration of dx/(y^2+x^2)^3/2

Sides AB and BC and the median AD of ΔABC are respectively proportional to the sides PQ and QR and the median PM of ΔPQR. Show that ΔABC ~ΔPQR.

 question 4

why you put x=1,-1,0 in EX:7.5.13