Question

Solve on the interval [0,2pi):
1) 3 sec x - 1 = 2
2) 4 csc x +1 = -3
3) 1 + cos(theta) = 1/2

Answer 1

secx=1; check where cos is 1
cscx=-1; check where sin is -1
cosx=-1/2; check where cos is -1/2

Answer 2

1) pi/3, 5pi/3 ?
2) is 3pi/2
3) pi/6, 5pi/6 ?

Answer 3

i guess calculators were made for aliens ;p