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# solve 2sin2x = 3sinx watch

1. (Original post by Flamecat101)
sinx can be taken out as a factor :-)
(Original post by RDKGames)
>inb4 divides through by sin(x)
No please. You lose the sinx roots if you do that. Take them one by one. Do not cancel out anything!
2. (Original post by erratic_deus)
cosx = 3 divided by 4

is this correct...

i'm in gcse
Yeah, now just inverse it and find the values for x
3. (Original post by Howie_2114)
Attachment 725120 hope this helps
you forgot x=0, 180 and 360
you forgot x=0, 180 and 360
No I didn't. I'm working in Radians not Degrees.My answer is correct
5. (Original post by Howie_2114)
No I didn't. I'm working in Radians not Degrees.My answer is correct
Not fully. His post still applies. You completely evaded the valid solutions of because you made the rookie mistake of dividing through by

(also your second solution is off)

Besides, have you not read the rules of the forum which says we don't post full solutions unless necessary??
6. (Original post by Rohit_Rocks10)
No please. You lose the sinx roots if you do that. Take them one by one. Do not cancel out anything!
The second post is a joke...

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