Question

Solve on the interval [0,2π):
2cscx-3=-5
A. 2π/3, 4π/3
B. π/6, 5π/6
C. 3π/2
D. 7π/6, 11π/6

Answer 1

mean cos?

Answer 2

no

Answer 3

then you don't need trigonometry... it has to be 2cosx-3=-5

Answer 4

which is that http://www.wolframalpha.com/input/?i=2cosx-3%3D-5

Answer 5

its cosecant

Answer 6

ok... don't worry I'm greek :S http://www.wolframalpha.com/input/?i=2cscx-3%3D-5

Answer 7

soo, which one would u choose as the answer?? lol

Answer 8

i;d go by c