Show that r = 1/4 - 3Cos¦È is polar form of an ellipse and find...

y = 3cos(x-1) Shift along x: Shift along y: Kind of reflection:

The sinusoid y=3cos(x+3)-2 has which of the following? a. phase shift of 3 to the right b. phase...

How do you evaluate: 3cos^2â - 3sin^2â ?

y = 3cos(3x)cos(10x) This function represents the displacement-time of a guitar string as it vibr...

f(x) = 3cos(x)−cos^3(x) for 0 < x < 2π I need help finding where it increases and decreases and...

For the function f(x)=3cos(2x),what is the first point where it is increasing the fastest? Also pl...

If f(x)=3cos^2x-4cosx

How does √(-3cos(t)/2)^2 +(3sin(t)/2)^2 (3cos(t)/2 - 9/2)^2 equal 3/4√4sin^2(t)-12cos(t)+17 instead...

derive 3cos (x/2)

write 𝑦 = 3cos (2 (𝑥 -45)) − 4 in mapping notation

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