charliebroadbent charliebroadbent
  • 10-04-2021
  • Mathematics
contestada

f(x) = cos(x - 90°)
Which is the value of f(0°)?
A 1
B 0
C-1
1
2

Respuesta :

ArlenH ArlenH
  • 10-04-2021
The answer is B.
f(x)= cos(x-90) = -cos(90-x)
(If you know how to, draw the CAST chart)
-cos(90-x)= -sin(x)
Sub. x=0, -sin(0)= 0
Answer Link

Otras preguntas

0.4612 rounded to the nearest hundredth= what percentage?Question:Round the decimal to the nearest hundredth;then write it as a percentageProblem: 0.4612=___(&l
How many light years are in 1 second?
During the first year, a bakery sold 37,580 bags of cookies. During the second year, the bakery sold 5,000 more bags than were sold the first year. What is the
What is 1,632 in word form?
In the City of Ember,  Why would it frighten the children to see Ember's current storerooms?
A classmate says that 0.285714 repeating  is not a rational number because it does not terminate. Explain her error.   I need help answering this
A security camera rotates 30° every 10 seconds. How long does it take the camera to rotate 360°?
Which of the following ratios is not equivalent to the ratio 5/6  Explain10/12, 13/14, 15/18, 25/30
an electric heater of power 1000W has a resistance of 10 ohm. calculate the magnitude of current
How do geographers determine the locations of places?