Question

Evaluate the trigonometric function?

Cos= 4/5

Cot= ?

 

Answer 1

cos= 4/5

From the trignometric ratios

cos =adj/hyp

adj =4 and hyp =5

Calculate the opposite side

Opp =sqrt(hyp^2 -adj^2)

         =sqrt(5^2-4^2)

         =sqrt(25-16)

          =3

cot =adj/opp =4/3