does anybody know ?

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Keroro

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does anybody know a website that organized notes and concepts for


1. trigonometry

(including angle for 30, 45, 60 90 for sin, cos, tan , etc)



2. probability

(concepts, many examples)


????






please help me..





6 days for the DAT .. dang

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Cos, sin
0* 1;0
30* or pi/6: Sqr 3/2, 1/2
45* or pi/4: 1/spr2 ; 1/squr2
60* or pi/3: 1/2 : squr3/2
90* or Pi/2: 0 ; 1
when you go to the next quarter of the circle, change the sign of x and y (always remeber x as cos, y as sin)
 
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