Question

How do you evaluate `2 cos (pi/3) - 6 tan (pi/3)`?

Answer 1

`color(purple)(=> 1 - 6sqrt3)`

Explanation:

![https://www.tes.com/teaching-resource/table-of-exact-values-of-trigonometric-functions-6437384]()

`"From table above", cos (pi/3) = 1/2, tan (pi/3) = sqrt3`

`2 cos (pi/3) - 6 tan (pi/3) = 2*(1/2) - 6 * (sqrt3)`

`color(purple)(=> 1 - 6sqrt3)`