Question

Evaluate sin 0 degrees + 2 cos 0 degrees + 3 sin 90 degrees + 4 cos 90 degrees + 5 sec 0 degrees + 6 csc 90 degrees

Answer 1

here's a hint:

sin 0 = 0
cos 0 = 1
sin 90 = 1
cos 90 = 0
sec = 1/cos
csc = 1/sin