In triangle `A B C ,b^2s in2C+c^2sin2B=2b cw h e r eb=20 ,c=21 ,` then inradius= 4 (b) 6 (c) 8 (d) 9

In triangle A B C ,b^2sin2C+c^2sin2B=2bc where b=20 ,c=21 , then inradius= (a) 4 (b) 6 (c) 8 (d) 9

In triangle A B C ,b^2 sin2C+c^2sin2B=2bc where b=20 ,c=21 , then inradius= (a)4 (b) 6 (c) 8 (d) 9

In triangle A B C ,b^2sin2C+c^2sin2B=2bc where b=20 ,c=21 , then inradius= (a) 4 (b) 6 (c) 8 (d) 9

In triangle ABC,b^(2)sin2C+c^(2)sin2B=2bc where b=20,c=21 then inradius =4 (b) 6(c)8(d)9

In triangle ABC, b^(2), sin2C+c^(2) sin 2B-2bc where b=20 c=21 then inradius =

In triangle ABC, b^(2) sin 2C + c^(2) sin 2B = 2bc where b = 20, c = 21 , then inradius =

In triangle ABC, b^(2) sin 2C + c^(2) sin 2B = 2bc where b = 20, c = 21 , then inradius =

If in a triangle A B C ,bcos^2A/2+"a c o s"^2B/2=3/2c , then a ,c ,b are: in A.P. b. in G.P. c. in H.P. d. none of these

In a triangle A B C , right angled at B , the inradius is (A B+B C-A C)/2 (b) (A B+A C-B C)/2 (A B+B C+A C)/2 (d) none

In a triangle A B C , right angled at B , the inradius is (A B+B C-A C)/2 (b) (A B+A C-B C)/2 (A B+B C+A C)/2 (d) none