trig identities a level maths
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sin^2x + cos^2x
1
cos2x (s)
1-2sin^x
cos2x (c)
2cos^2x-1
sin2x
2sinxcosx
tan2x
2tanx/1-tan^2x
1 + tan^2x
sec^2x
tan(x)
sin(x)/cos(x)
cot(x)
cos(x)/sin(x)
cos2x (c-s)
cos^2x-sin^2x
1 + cot^2x
cosec^2x
