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# Maths Edexcel Identities watch

1. hello, I would like to know all the possible identities that come as they are and that can be manipulated into new ones that can be of use in a C3 exam. A list or a link to a website that has them ALL would be appreciated, thank you. If you could, it would be helpful as to how you manipulated those identities into new ones, but a list would be just fine.
2. (Original post by DeleAlli14)
hello, I would like to know all the possible identities that come as they are and that can be manipulated into new ones that can be of use in a C3 exam. A list or a link to a website that has them ALL would be appreciated, thank you. If you could, it would be helpful as to how you manipulated those identities into new ones, but a list would be just fine.
Sin^2x + cos^2x = 1

Tanx = sinx/cosx

Are all that you need

Unless you also mean things like sin(a+b) ... But these are given on the formula sheet
3. (Original post by TenOfThem)
Sin^2x + cos^2x = 1

Tanx = sinx/cosx

Are all that you need

Unless you also mean things like sin(a+b) ... But these are given on the formula sheet
lol yeah was kinda looking for a whole list of them but nevermind found them on google thank you though
4. (Original post by DeleAlli14)
hello, I would like to know all the possible identities that come as they are and that can be manipulated into new ones that can be of use in a C3 exam. A list or a link to a website that has them ALL would be appreciated, thank you. If you could, it would be helpful as to how you manipulated those identities into new ones, but a list would be just fine.
Here's my go to list
Attached Images

5. Cheers bro Im gonna use these and make my own list me thinks
6. (Original post by Jackasnacks)
Here's my go to list
That meant to say 1/tan

Lol

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