Solve for x.
Maple gave 60, 120, 150 & -150 degrees as the answers.
I tried to find a solution but in vain.
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1. Use an identity to deal with sin(2x).
2. Use as much algebra as you can.
Originally Posted by phys251 1. Use an identity to deal with sin(2x).
2. Use as much algebra as you can. 1. I did already.
2. " ... as much Algebra as you can." = infinity ...
After using an identity for sin(2x) bring all the terms with to one side of the equals sign and then square both sides. The identity will be helpful later.
haha. THanks. Got it ... I didn't tried that one bcoz I proceeded to more complex solution quickly.
We have: .
Then: . . . . . . .
Therefore: . . . .
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