pt 1 diferensial fungsi-d4
TRANSCRIPT
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MATEMATIKA
Oleh:Dr. Parulian Silalahi, M.Pd
http://polmand4.esy.es/
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Rumus Dasar:
y = sinx y’ = cos xy = cos x y’ = - sin xy = tg x y’ = sec2 xy = ctg x y’ = -cosec2 xy = sec x y’ = sec x. tg xy = cosec x y’ = -cosec x. ctg x
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Rumus Dasar:
y = sin ax y’ = a.cos axy = cos ax y’ = -a.sin axy = tg ax y’ = a.sec2 axy = ctg ax y’ = -a.cosec2 axy = sec ax y’ = a.sec ax. tg axy = cosec ax y’ = -a.cosec ax. ctg ax
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Contoh 3:Tentukanlah turunan dari fungsi trigonometri berikut:1.Sin 5x2.Tg 2xJawab:1.Sin 5x = 5 cos 5x2.Tg 2x = 2sec22x
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dxdv
dvdu
dudy
dxdy
dxdu
dudy
dxdy
..
.
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Contoh4:Tentukanlah turunan kedua dari fungsi berikut:1.y = 5x3 – 7x2+ 12.y = 3/x2 + 2x4
3.y= sin2xJawab:1.y = 5x3 – 7x2+ 1 dy/dx = 15x2- 14x dy2/dx2 = 30x - 14
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2. y = 3/x2 + 2x4
dy/dx = -6x-3 + 8x3
dy2/dx2 = 18x-4 + 24x2
3. y = sin 2x dy/dx = 2 cos 2x dy2/dx2 = -4 sin 2x
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TERIMA KASIHSelamat Belajar