aliviah2004 aliviah2004
  • 03-05-2020
  • Mathematics
contestada

If cos(θ) = -8/17 and sin(θ) is negative, then sin(θ) = and tan(θ) = .

Respuesta :

elliottou
elliottou elliottou
  • 03-05-2020

Answer:

sin(θ) = -15/17

tan(θ) = 15/8

Step-by-step explanation:

it is known that cos²(θ) + sin²(θ) = 1

cos(θ) = -8/17

cos²(θ) = 64/289

sin²(θ) = (289-64)/289

sin²(θ) = 225/289

sin(θ) = ±15/17

since sin(θ) is negative, sin(θ) = -15/17

we also know that tan(θ) = sin(θ)/cos(θ)

tan(θ) = (-15/17)/(-8/17) = (-15/17 * 17) / -8 = 15/8

Answer Link

Otras preguntas

Write each sum as a product of the GCF of the two numbers : 75 and 90
Briefly describe the factors that can lead to conflict.
Which is true about textual features in business documents? Bigger font sizes are used to emphasize information and to show that it is important. Textual featur
How many eyes does my dog have?
What is 37/4 as a percent
do judiasms believe in the after life
Select all that apply. Some of the effects of the Industrial Revolution included _____. 1) mass migration from urban to rural life 2) mass migration from rural
find the surface area of a bar of soap if the diameter is 5 cm and the height is 2cm .
Which is not an example of a symbol? A word, a picture, an object or an opinion?
Mark each statement if it describes a Muslim achievement in science and mathematics. a. Muslim mathematicians introduced geometry to the world. b. Ibn Sina coll