Moderate# Trigonometric Ratios

SATSTM-LWNQOJ

If in triangle $\text{ABC}$, angle $\text{B}$ is a right angle, then which of the following are true?

I. $\text{cos A}=\cfrac{\text{AB}}{\text{AC}}$

II. $\text{sin C}=\cfrac{\text{AB}}{\text{AC}}$

III. $\text{tan A}=\text{cot C}$