Question

How do you solve `cos50º = x/y`?

Answer 1

With a single equation in two variables, no unique solution is possible.
`color(white)("XXXX")y~=(1.555724)x`

Explanation:

`cos(50^@)~= 0.642788` (using calculator)

`0.642788 ~= x/y`

`(0.642788)y ~= x`

or
`y ~= (1.555724)x` (again using a calculator)