False. A bisector divides the angle evenly, not into right angles.
Answer:
1st one a^-1 , 2nd one a^b/a^c , 3rd one a^c/b^c
Check the picture below.
let's recall that a straight-line has 180°, and that sum of all interior angles in a triangle is also 180°.
Put the "<" sign as the apples are less