check trig question please (do without calculator)

Question

dtan5457 · Answer

attachment

dtan5457 · Answer

this is a -420 degree angle...so its going clock wise...then i believe the 60 degree angle ends up in the 4th quadrant.

it's sec and cos, so it's positive

dtan5457 · Answer

is this...

$$\frac{ 1 }{ \sqrt{3}/2 }$$

kainui · Answer

Nope, I think you must have messed something up, I did my work slightly differently let me see if I can find your mistake

dtan5457 · Answer

actually. i think it's

1/(1/2)

kainui · Answer

Yeah all your reasoning is perfectly right, it's just you wrote the wrong number. You corrected yourself though, 2 is the right answer. =P

dtan5457 · Answer

lol it's because for a second i inversed sec as tan for some weird reason. just realized it was cosine

dtan5457 · Answer

thanks again

kainui · Answer

cool yeah no problem