Question

cos θ - sin θ = √2 sin θ/2

Answer 1

must be between the interval \[[0,2\pi]\]

Answer 2

the directions say this, "Use a Double- or Half-Angle Formula to solve the equation
in the interval [0,2pi]." The answers in the book say \[\pi/6,3\pi/2\]

Answer 3

\(\bf cos(\theta)-sin(\theta)=\cfrac{\sqrt{2}\quad sin(\theta)}{2}\quad ?\)

Answer 4

thats what it appears to be naturally just the line isn't there but yes thats the problem :)

Answer 5

I remember my professor telling me that in problems like this, to always do the side that looks more ocmplicated

Answer 6

One sec let me google search the half angle and double angle formulas

Answer 7

I tried dividing out the \[\sqrt{2}\] but that didnt help, and converting the sin in to a square root but it didnt help. Gotta love College Trig classes I like calculus better :)

Answer 8

the book says the answers are \[\pi/6,3\pi/2\]

Answer 9

I'm working it out right now

Answer 10

Sorry I'm taking so long I just seem to be having a hard time finding the half and souble angle formulas

Answer 11

i got them handy :) ill type them in

Answer 12

And are you sure it's not....