Question

PLS HELP!

Which trigonometric function has a range that does not include -0.8?
A.) y=sin x
B.) y=csc x
C.) y=cot x
D.) y=cos x

Answer 1

B.) y=csc x

Explanation:

The cosecant function has a minimum magnitude of 1, so its range excludes any values in the range -1 < y < 1.

y = csc(x) . . . has a range that does not include -0.8