edit: my algebra sucked
0 doesn't have a sign so squaring won't make a difference and you can simply solve
Hi!
The equation is...
i'm trying to solve for theta, limiting domain from 0 to 360 degrees.
After substituting for and simplifying i ended up with...
OR
after applying arcsine i came up with an answer of 0 degrees. Now, my graphing calculator of course does not provide ALL possible answers. I noticed that 180 degrees is also an answer. I guess this is because of the theoretical -0 degrees that when squared would result in 0 too?
Did i do this correctly?
From the graph of sin(x)
Hence 360 is a potential solution depending on your domain.
See the wolfram graph of sin(x): http://www.wolframalpha.com/input/?i...+from+0+to+2pi
ok. so sin function gives you the y-coordinate and cos function gives you the x-coordinate. and tan gives you a ratio of the two.
all within the unit circle of course.
that is, when you plug in degrees.**