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

Use the distributive property to express 15+45
Jobs in the skilled labor category require what?
Taylor is building dog houses to sell. Each doghouse house requires free full sheets of plywood which Taylor cuts into new shapes. The plywood is shipped in b
Philadelphia, Pennsylvania, is 2,147 miles from Salt Lake City, Utah, and 2,868 miles from Portland, Oregon. What is the difference in the round-trip distances
write 4/9 5/9 ratio in simplest form
what is 2/5 + 3/7 in the LCD way
In ∆ABC, which ratio equals cos C?
Julian counted the number of times he drove across the Seven Mile Bridge while vacationing in the Florida keys. He crossed the bridge 34 times. How many miles i
A car can travel 476 miles on 14 gallons of gas. Write an equation relating the distance d to the number of gallons g. How many gallons of gas does this car nee
Jobs in the skilled labor category require what?