Right △ABC has its right angle at C, BC=4 , and AC=8 .
What is the value of the trigonometric ratio?
AC = 8 BC = 4 AB = sqrt [ (AC)²+ (BC)² ] AB = 8.944
sin A= BC / AB = 4/8.944
tan B= AC / BC = 8/4
sec A= AB / AC = 8.944/8