Математика, Детальна інформація

cos x cos y

sin (x - y)

tg x - tgy = —————

cos x cos y

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sin x sin y = ((cos (x-y) - cos (x+y))

cos x cos y = ((cos (x-y)+ cos (x+y))

sin x cos y = ((sin (x-y)+ sin (x+y))

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2 tg x/2

sin x = ——————

1+ tg( x/2

1-tg 2/x

cos x = —————

1+ tg( x/2

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sin x = m ; |m| ( 1

x = (-1)n arcsin m + (k, k( Z

sin x =1 sin x = 0

x = (/2 + 2(k x = (k

sin x = -1

x = -(/2 + 2 (k

cos x = m; |m| ( 1

x = ( arccos m + 2(k

cos x = 1 cos x = 0

x = 2(k x = (/2+(k

cos x = -1

x = (+ 2(k

tg x = m

x = arctg m + (k