Let , −3−8 be a point on the terminal side of θ.

Question

Let , −3−8, be a point on the terminal side of θ. Find the exact values of sinθ, secθ and tanθ.

Answer 1

first need to calculate hypotenuse h^2= (-3)^2 + (-8)^2= 9+64 = 73 h= sqroot 73

sin = -8/sqroot 73 = -8sqroot73/73

sec = -sqroot 73/3

tan= -8/-3= 8/3