Mr Am’s SySteM

Archive for the 'Mathematic' Category

Owh shit.. Aku pening dengan matematik

October 29th, 2008

Pinjam ayah rm25

Pinjam mak rm25

Total = rm50.

Beli baju rm45, balance rm5

rm1 bayar ayah

rm1 bayar mak.

balance rm3.

hutang ayah jd rm24

hutang mak jdi rm24

rm24+rm24=rm48+balance rm3= rm51..

Owh, shit.. IQ over 120, can’t think about this..

Aku betul2 xleh pikir, mana datangnya lebih rm1 ni??

Anyone?

UPDATE

Okey2, aku kasi jawapan..

Korang pinjam RM50, bayar RM2

Jadi, korang pinjam RM48 la kan?

Beli baju RM45, balance mesti la tinggal RM3 (RM45 + RM3 = RM48)

ps : Mesti la bodoh kalau hutang, korang tambah dengan hutang

pss : Aku juga tertipu masa mula-mula baca tadi..

 

Trigonometric identities

April 20th, 2008

More important identities

You don’t have to know all the identities off the top of your head. But these you should.

Defining relations for tangent, cotangent, secant, and cosecant in terms of sine and cosine.

tan t =	sin t cos t		cot t =	1 tan t	=	cos t sin t
sec t =	1 cos t		csc t =	1 sin t

The Pythagorean formula for sines and cosines.

sin² t + cos² t = 1

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