how would you use sin cos or tan to express arcsec(.5)=x?

Question

dang, that was supposed to be a generic question, i meant arcsec(3)=x then

arcsec(3)=x

Answer 1

not possible, because secant can't be less than 1.

but otherwise just draw a triangle.

that statement also means secx = 0.5
so hypotenuse / adjacent = 1/2,
leaving opposite = whatever with the Pythagorean theorem.

and just find the rest from there

Answer 2

sec=1/cos so sec=0.5 means cos =2 which is impossible