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Тригонометрические формулы
ЛюдмилаАлексеевна
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Тригонометрические формулы
1
sin²x+cos²x
sin²x
1-cos²x
cos²x
1-sin²x
tg x
sin x/cos x
ctg x
cos x/sin x
sin (x+y)
sinxcosy+cosxsiny
sin (x-y)
sinxcosy-cosxsiny
cos(x+y)
cosxcosy-sinxsiny
cos(x-y)
cosxcosy+sinxsiny
√1-x²
sin(arccosx)
√(1-x²)
cos(arcsinx)
1
tgx*ctgx
1/√(1+x²)
cos (arctgx)
x/√(1+x²)
sin (arctgx)
tg (arccosx)
√x²/(1-x²)
tg (arcsinx)
2 sinx cosx
sin 2x
cos²x-sin²x
cos 2x
(1-cos 2x)/2
sin²x
(1+cos 2x)/2
cos²x
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