Question

Given that: (1 + cos a) (1 + cosß) (1 + COSY) = (1 - cos a) (1 – cosß) (1 – cosy)
Show that one of the values of each member of this equality is sin a sin B sin y
2
12​

Answer 1

Answer:

Given that (1+cos x) (1+cos y) (1+cos z) = (1- cos x) (1-cos y) (1-cos z), how can one show that one of the values of each member of this .