Question

Find sin, cos, and tan for the given point (-4,5).

Answer 1

Step-by-step explanation:

x^2 + y^2 = r^2 --> r =$\sqrt{(-4)^2 + 5^2}$ =$\sqrt{41}$

cos = x /r = -4 /$\sqrt{41}$

sin = y /r = 5/$\sqrt{41}$

tan = sin /cos = -5 /4