Question

Evaluate sec three pi over two to the nearest hundredth. The angle is given in radians

Answer 1

do you know that
\[\cos(\frac{3\pi}{2})\] is ?

Answer 2

yeah

Answer 3

then take the reciprocal (flip it)

Answer 4

secant is the reciprocal of cosine, so since
\[\cos(\frac{3\pi}{2})=-\frac{1}{2}\] you have
\[\sec(\frac{3\pi}{2})=-2\]

Answer 5

then what?

Answer 6

that was all it asked right?

Answer 7

yeah but -2 isnt a choice lool