Trigonometry on the ACT

Question

How would you solve something like this: What is the value of 2cos(π/2)+sin(π/2)?

Answer 1

∏/2 is radian measure

∏/2=180°/2=90°

substitute 90° for ∏/2 and find the sin and cos of 90° and finish up the problem

Answer 2

These are two measures that should be know.

sin (π/2) = 1

cos (π/2) = 0

2(0) + 1 = 2