Question

Cos a=12/13, then calculate cot a. If

Answer 1

if cos a =12/13

then cot a = 12/5

Answer 2

WE KNOW cos a = 12/13

base/hypotenuse=12/13

base=12 units , hypotenuse=13 units

therefore (perpendicular)²=13²-12²

                                       =169-144=25

perpendicular=√25=5 units

THEREFORE cot a =base/perpendicular

                              =12/5

is the answer.