Question 762938
Finding the exact value of the following: 
arcsin (-sqrt(3)/4)=arcsin(-√3/2)=300º
cot(tan inverse 5)=cot(cot inverse (1/5))=1/5
cos inverse (sin5pi/4)=cos 225º=-√2/2
sine(sine inverse 2/3)=2/3
..
note: the inverse of a trig function is an angle with domains as follows:
cos: [0,π]
sin: [-π/2,π/2]
tan: [-π/2,π/2]