Question 1025202
Is the opposite side to the (90-x) degree angle 4 (and adjacent side 3?)?


If so, sin(90-x) = opposite/hypotenuse = 3/5 (where "opposite" refers to the side opposite the angle with measure 90-x deg)
cos(90-x) = adjacent/hypotenuse = 4/5
tan(90-x) = opposite/adjacent = 4/3


However, I cannot answer the last two (cos(90-x) and tan(90-x)) because you did not specify whether you meant cos(90-x) or cos x (trig functions require an argument!).


For the next three, use the definitions sec x = 1/cos x, csc x = 1/sin x, cot x = 1/tan x.