"Find all solutions to algebraically."
I am having trouble getting very far with this. Thanks.
Edit: I have tried messing around with the double argument formulas and turning them into different ratios.
Last edited by ATC; November 21st 2010 at 04:43 PM.
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Here's a start
Hello, ATC! Find all solutions to: .
Edit: I have tried messing around with the double argument formulas. Since they are all double angles, why bother?
Multiply through by . . . .
And we have: . . . . . .
Thank you...multiplying by cos2x made it so much simpler.