kellerpaula kellerpaula

22-03-2020
Mathematics

contestada

Trigonometry
Special Right Triangles
Find the exact value of cos 60* - cot 30* - cot 90*.

Respuesta :

amna04352 amna04352

22-03-2020

Answer:

½ - sqrt(3)

Step-by-step explanation:

cos(60) = ½

tan(30) = 1/sqrt(3)

cot(30) = sqrt(3)

tan(90) is undefined

cot(90) = 0

½ - sqrt(3) -0

½ - sqrt(3)

Answer Link

Otras preguntas

in her first 4 games jill averaged 4 points per game. in her next 6 games jill averaged 9 points per game. what was her average number of points per game after

2/3(x+12)+2/3x=4 How do you solve the equation?

Which expression is equivalent to 1/4(8-6x+12)? A) 7/2x B)-13/2 C)-6x+14 D)-3/2x+5 An airplane's altitude changed -378 feet over 7 minutes. What was the mean c

What happens when you mix soil with water?

Some of the artifacts that hint at religious rituals include _____..

Daniel is three years older than twice his brother's age. Daniel is 17. Fill in the box with the expression that represents the age of Daniel's brother. Let b r

Which of these ancient civilizations is represented by the map above? ancient China Indus River Valley ancient Egypt Mesopotamia

Fingerprints cannot be used to identify particular people. True False

the ratio of boys to girls on a swimming team is 3 to 4. the team has 70 members. how many are boys?

write a mixed number for p so that 3 1/4 x p is more than 3 1/4