From the figure (1) given below, find the values of:

(i) sin B

(ii) cos C

(iii) sin B + sin C

(iv) sin B cos C + sin C cos B.

From the figure (1) given below, find the values of :

(i) 2 sin y - cos y

(ii) 2 sin x - cos x

(iii) 1 - sin x + cos y

(iv) 2 cos x - 3 sin y + 4 tan x