in `DeltaA B C ,tan(A-B-C)=`

In a DeltaA B C ,1/(1+tan^2(A/2))+1/(1+tan^2(B/2))+1/(1+tan^2(C/2)) = k [1+sin(A/2) sin(B/2) sin(C/2)], then the value of k is

In a DeltaA B C ,1/(1+tan^2(A/2))+1/(1+tan^2(B/2))+1/(1+tan^2(C/2))=k [1+sin(A/2) sin(B/2) sin(C/2)], then the value of k is

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 DeltaA B C , right-angled at B, A B\ =\ 24\ c m ,\ B C\ =\ 7\ c m . Determine: (i) sin A, cos A (ii) sin C, cos C

In DeltaA B C , right-angled at B,A B" "=" "24" "c m ," "B C" "=" "7" "c m . Determine: (i) sin A, cos A (ii) sin C, cos C

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

In DeltaA B C , it is known that /_B=/_Cdot Imagine you have another copy of DeltaA B C Is DeltaA B C~=DeltaA C B State the three pairs of matching parts you have used to answer (i). Is it true to say that A 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 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 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)