Hello. This is a little urgent so hopefully, I'll be able to get answers quickly. I know this may seem rather basic but I'm having some trouble with these two equations. Well, for one of them, I seemed to be able to get most of the answers but one. Could you please answer these in EXACT form and also in radians?
First one: (The one I'm struggling with)
2sinx - cosx = 0
All I need for this equation is a starting point or working angle(s) and I should be able to finish off the rest.
Second one: (Just wanted to ask a little question)
sin3x = 0
For -pi ≤ x ≤ 0
My working angle is obviously 0.
That means x = 0 + (2/3)*k*pi where k is an integer
Now for my answers, I got 0 and -2pi / 3. However, with my calculator, there seems to be another solution which is -pi / 3.
Now, I was wondering, what value of k would allow me to get that missing answer?
Thankyou. All help is of course, appreciated as usual.