Write cos(arccosx + arctany) as an algebraic expression in x and y.© BrainMass Inc. brainmass.com March 4, 2021, 5:38 pm ad1c9bdddf
First using cos(a+b)=cos(a)cos(b)-sin(a)sin(b)
we can write
Above I used cos(arccosx)=x and ...
This shows how to translate a trigonometric function into an algebraic expression. The algebraic expressions are examined.