Question

give the missing value:
sin 54.2=? -->i think its 0.811 but i might be wrong.

sec 23.2=? --->i think its 1.08, but again, i could be wrong

and i have NO idea how to do these:
cot ? =-0.500
sec ?= 1.000
csc ?= 0.732

Answer 1

Are you angles in degrees or radians?
sin 54.2 degrees = 0.81106
sec 23.2 degrees = 1.08798

The angle with a secant of 1.000 also has a cosine of 1.000

No angle can have a csc of 0.743. The csc must exceed 1.

cot^-1 (0.500) = tan^-1 2.00