Question

((cos^3 10+sin^3 20)÷(cos 10+sin 20)=?????

Answer 1

Oh boy XD. Well wait a minute. Don't they cancel each other out? And all you will be left with is cos^2+sin^2? I think there is something I am missing unless the point is to cross out. Perhaps you can't cancel out binomials in this expression.

Answer 2

^ which equals 1 :)

Answer 3

How did u get that?? Please tell the process .and very thanks for the answer