elfhadwerewolf: Desember 2010

Sabtu, 18 Desember 2010

Cara Membuat 'Moving Teks'

<marquee> teks teks teks </marquee>

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Rumus Rubik 3x3

Upside 1st Layer
Db – As – Ki.b – Ab –> Cross
Ka.b – Bb – Ka.s – Bs –> Upside Corner Finishing

Middle Layer
As – Ka.s – Ab – Ka.b – Ab –Db – As – Ds –> Right Corner
Ab – Ki.b – As –Ki.s – As – Ds – Ab – Db –> Left Corner

Upside Cross
Ds – Ka.s – As – Ka.b – Ab – Db

Front Back
Ka.s – As – Ka.b – As – Ka.s – As – As – Ka.b

Right Back
Ka.s – As – Ka.b – As – Ka.s – As – As – Ka.b – As

Upside Corner –> Combination Color
As – Ka.s – Ab – Ki.b – As – Ka.b – Ab – Ki.s

Finishing
Ka.b – Bb – Ka.s – Bs

Video

Ket:
D=Depan, A=Atas, Ki=Kiri, Ka=Kanan, B=Bawah
‘b’=counter clockwise, ‘s’=clockwise
Jadi misal “Ki.s” artinya sisi kiri diputar searah jarum jam. Ingat, masing-masing sisi berbeda arah jarum jamnya.

Trigonometri

Hubungan fungsi trigonometri

$\sin^2 A + \cos^2 A = 1 \,$

$1 + \tan^2 A = \frac{1}{\cos^2 A} = \sec^2 A\,$

$1 + \cot^2 A = \csc^2 A \,$

$\tan A = \frac{\sin A}{\cos A}\,$

Penjumlahan

$\sin (A + B) = \sin A \cos B + \cos A \sin B \,$

$\sin (A - B) = \sin A \cos B - \cos A \sin B \,$

$\cos (A + B) = \cos A \cos B - \sin A \sin B \,$

$\cos (A - B) = \cos A \cos B + \sin A \sin B \,$

$\tan (A + B) = \frac{\tan A + \tan B}{1 - \tan A \tan B} \,$

$\tan (A - B) = \frac{\tan A - \tan B}{1 + \tan A \tan B} \,$

Rumus sudut rangkap dua

$\sin 2A = 2 \sin A \cos A \,$

$\cos 2A = \cos^2 A - \sin^2 A = 2 \cos^2 A -1 = 1-2 \sin^2 A \,$

$\tan 2A = {2 \tan A \over 1 - \tan^2 A} = {2 \cot A \over \cot^2 A - 1} = {2 \over \cot A - \tan A} \,$

Rumus sudut rangkap tiga

$\sin 3A = 3 \sin A - 4 \sin^3 A \,$

$\cos 3A = 4 \cos^3 A - 3 \cos A \,$

Rumus setengah sudut

$\sin \frac{A}{2} = \pm \sqrt{\frac{1-\cos A}{2}} \,$

$\cos \frac{A}{2} = \pm \sqrt{\frac{1+\cos A}{2}} \,$

$\tan \frac{A}{2} = \pm \sqrt{\frac{1-\cos A}{1+\cos A}} = \frac {\sin A}{1+\cos A} = \frac {1-\cos A}{\sin A} \,$

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