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A level maths help

Hello, I am having trouble with this question.

2sin(x)cos(x)-sin(x)=0
I need to solve it and give my answers between 0 and 2pi.
I am having trouble with my first steps.
I tried substituting 1-sin^2(x)=cos^2(x) into cos but i am very confused. Any help will be appreciated thank you!
Original post by Shannon.Leanne
Hello, I am having trouble with this question.

2sin(x)cos(x)-sin(x)=0
I need to solve it and give my answers between 0 and 2pi.
I am having trouble with my first steps.
I tried substituting 1-sin^2(x)=cos^2(x) into cos but i am very confused. Any help will be appreciated thank you!


Try factorising by taking out sin x as a common factor.
Original post by Muttley79
Try factorising by taking out sin x as a common factor.
so could it be sin(x)(2cos(x)-1)=0? if so, what would i do after that?
Original post by Shannon.Leanne
so could it be sin(x)(2cos(x)-1)=0? if so, what would i do after that?


You have a product that equals zero.

So either one bracket must be zero, or the other.

Also, again, post these in the Maths forum. Bookmark it or something.
Original post by RDKGames
You have a product that equals zero.

So either one bracket must be zero, or the other.

Also, again, post these in the Maths forum.


Sorry I keep forgetting and I’ve figured it out now thank you!
Original post by RDKGames
You have a product that equals zero.

So either one bracket must be zero, or the other.

Also, again, post these in the Maths forum. Bookmark it or something.


I'd already answered ... I don;t interfere when you have posted [unless you are wrong].

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