In `DeltaA B C ,sumsin(B-C)/(b c)=`

In any DeltaA B C ,suma(sinB-sin C)= (a) a^2+b^2+c^2 (b) a^2 (c) b^2 (d) 0

In figure D is a point on side BC of a DeltaA B C such that (B D)/(C D)=(A B)/(A C) . Prove that AD is the bisector of /_B A C .

In figure D is a point on side BC of a DeltaA B C such that (B D)/(C D)=(A B)/(A C) . Prove that AD is the bisector of /_B A C .

In a DeltaA B C , if b=sqrt(3), c=1 a n d /_A=30^0, then find a

In a DeltaA B Csum(b+c)tanA/2tan((B-C)/2)=

In a DeltaA B C ,\ if\ b=sqrt(3),\ c=1\ a n d\ /_A=30^0 , then find a

In any DeltaA B C ,(b+c)/(12)=(c+a)/(13)=(a+b)/(15),\ then prove that (cos A)/2=(cos B)/7=(cos C)/(11)dot

In a DeltaA B C ,\ ifb=20 ,\ c=21\ a n dsinA=3/5 find adot

In figure ABC and AMP are two right triangles, right angles at B and M respectively. Prove that(i) DeltaA B C~ DeltaA M P (ii) (C A)/(P A)=(B C)/(M P)