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# Maths Question HELP! watch

1. Solve the equation sin2x=2cos2x, for 0◦≤x≤180◦.
How can I convert all in tan and solve it?
2. (Original post by kundanad)
Solve the equation sin2x=2cos2x, for 0◦≤x≤180◦.
How can I convert all in tan and solve it?
Well, what's tan in terms of cos and sin?
3. tan = sin/cos
(Original post by RDKGames)
Well, what's tan in terms of cos and sin?
4. (Original post by kundanad)
Solve the equation sin2x=2cos2x, for 0◦≤x≤180◦.
How can I convert all in tan and solve it?
Draw both graphs and see where they cross that’s your solution
5. (Original post by kundanad)
tan = sin/cos
So what's the extremely obvious thing to do in your equation to get sin/cos
6. (Original post by kundanad)
Solve the equation sin2x=2cos2x, for 0◦≤x≤180◦.
How can I convert all in tan and solve it?
Tantheta = sintheta/costheta. Now work it out yourself

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