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20102−19902=?2010^2-1990^2=?20102−19902=?
4000
8000
40000
80000
A raiz da equação é? 3x+6=03x+6=03x+6=0
-6
-2
2
6
3x2+6x=03x^2+6x=03x2+6x=0
As raízes da equação são:
2 e 3
0 e 3
-2 e 3
0 e -2
340
360
380
400
sen 30º =?sen\ 30º\ =?sen 30º =?
0,4
0,5
0,6
0,8
tg α=sen αcos αtg\ \alpha=\frac{sen\ \alpha}{\cos\ \alpha}tg α=cos αsen α
V
F
sec β=1sen β\sec\ \beta=\frac{1}{sen\ \beta}sec β=sen β1
sen α=0,6sen\ \alpha=0,6sen α=0,6 cosα=?\cos\alpha=?cosα=?
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