Question

if sin b is equal to 1 upon 2 prove thatif sin 20 equal to 1 upon 2 prove that 3 cos B minus 4 cos cube theta is equal to zero ​

Answer 1

Answer:

c sin2 120°cosec 270° − cos2 315°sec 180° − tan2 225°cot 315°. return to top. Angles of any magnitude. As before, we take the point P on ..