sisi557 sisi557

15-07-2020
Mathematics

contestada

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

Respuesta :

15-07-2020

Step-by-step explanation:

x^2 + y^2 = r^2 --> r =[tex]\sqrt{(-4)^2 + 5^2}[/tex] =[tex]\sqrt{41}[/tex]

cos = x /r = -4 /[tex]\sqrt{41}[/tex]

sin = y /r = 5/[tex]\sqrt{41}[/tex]

tan = sin /cos = -5 /4

Answer Link

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