Question

Evaluate the expression: arctan(-sqrt3) and Arctan(-sqrt3). I don't understand what they mean by evaluate and how these two functions are different.

Answer 1

Evaluate here means determine the value of the angle whose tangent is sqrt(3)/1. Imagine a right triangle with sides 1 and sqrt(3) and the angle opposite the sqrt(3) side is the angle sought.

Both expressions look identical except for the capital A.

Answer 2

So the capital A has no effect?

Answer 3

Right. A = a here

Answer 4

Awesome! Thanks :)