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Trig Equations

Tools

A	B
tan	sin/cos
cot	cos/sin
csc	1/sin
sec	1/cos
sin2 + cos2	1
1 + tan2	sec2
1 + cot2	csc2
sin(pi/2-a)	cosa
cos(pi/2-a)	sina
sin (a + b)	sinacosb + sinbcosa
cos (a + b)	sinasinb - cosacosb
tan (a + b)	tana + tanb/1 - tanatanb
sin (2a)	2sinacosa
cos (2a)	cos2a - sin2a
tan (2a)	2tana/1 - tan2a
sin x/2	1 - cos (2x)/2
cos x/2	1 + cos (2x)/2
tan x/2	1 - cos (2x)/1 + cos (2x)

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