- #1
Firepanda
- 430
- 0
It's a previous exam question using compound angle forumlas. I've tried everything to try and get the answer involving rearrangments!
I know the forumlas i just can't get them to work to show this.
I assume its something to do with adding or subtracting the forumla away from each other, but I've tried it. The furthest i got was this:
cos (alpha) + (root 3)sin (alpha)
but i can't get it into the format of what they want
Here's the question :)
http://img251.imageshack.us/my.php?image=mathelpsk7.jpg
Thanks!
I know the forumlas i just can't get them to work to show this.
I assume its something to do with adding or subtracting the forumla away from each other, but I've tried it. The furthest i got was this:
cos (alpha) + (root 3)sin (alpha)
but i can't get it into the format of what they want
Here's the question :)
http://img251.imageshack.us/my.php?image=mathelpsk7.jpg
Thanks!