Opening balance kis group me ayega

How to entry a journal entry

Physics

If a, b, c are non zero, non coplanar vectors and p=b×c/[a b c] ; q=c×a/[a b c] ; r=a×b/[a b c] then prove that (a b).p (b c).q (c a).r = 3......... (note: there is no gap in prove tht there is a sum sign.) 

solve the differential eaquation using any method (xy-1)dx+ydy=0

(xy-1)dx+ydy=0

NCERT 12 classes chapter 5.7 all solutions

AD is a median of triangle ABC. The bisector of angle ADB and angle ADC meet AB and AC in E and F respectively. Prove that EF is parallel to BC.