Question
Find the 6 trigonometric function of teta if it's terminal side passes through the point(1,2)
Answers
Reiny
so you know that x (adjacent) is 1 and
y (opposite) is 2
Using Pythagoras we can find r (the hypotenuse)
r^2 = 1^2 + 2^2 = 5
r = √5
now now simply use the definitions to form the 6 different trig ratios
e.g.
cos Ø = adj/hyp = 1/√5
sec Ø = 1/cosØ = √5
etc
y (opposite) is 2
Using Pythagoras we can find r (the hypotenuse)
r^2 = 1^2 + 2^2 = 5
r = √5
now now simply use the definitions to form the 6 different trig ratios
e.g.
cos Ø = adj/hyp = 1/√5
sec Ø = 1/cosØ = √5
etc