Question

Find a value of x that satisfies the equation csc( – 85°)=sec(x).

Answer 1

1/ sin(-85) = - 1/sin85 = 1/cosx
-> -sin85=cosx
but since
sin 85= sin (90-5) = cos 5
-sin (90-5) = -cos 5
-cos 5 = cos (90+5)
Therefore x=95