Question

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

Answer 1

Explanation:

x^2 + y^2 = r^2 --> r =
`√((-4)^2 + 5^2)` =
`√(41)`

cos = x /r = -4 /
`√(41)`

sin = y /r = 5/
`√(41)`

tan = sin /cos = -5 /4