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dobahai007

dobahai007

Đăng ký: 03-07-2013
Offline Đăng nhập: 16-03-2015 - 21:52
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$\frac{3sin^{2}x-2sinx-3}{cotx}+3-2sin^{3...

29-01-2014 - 12:27

$\frac{3sin^{2}x-2sinx-3}{cotx}+3-2sin^{3}x=0$


$\frac{1-2sinx-2sin2x+2cosx}{2sinx-1}=cos2x-\sqrt...

22-01-2014 - 21:13

$\frac{1-2sinx-2sin2x+2cosx}{2sinx-1}=cos2x-\sqrt{3}(1+cosx)$

 


$\frac{3sin^{2}x+2sinx-3}{cotx}+3-2sin^{3...

22-01-2014 - 21:06

$\frac{3sin^{2}x-2sinx-3}{cotx}+3-2sin^{3}x=0$

cosx+ cos^2 (x) + cos^3(x) cos^4(x) = sinx + sin^2(x) + sin^3(x) + sin^ 4(x)

16-01-2014 - 22:13

cosx+ cos^2 (x) + cos^3(x) cos^4(x) = sinx + sin^2(x) + sin^3(x) + sin^ 4(x)

 


$\lim_{x->-\infty}(\sqrt{9x^2+1}-3x)$

12-01-2014 - 23:45

$\lim_{x->-\infty}(\sqrt{9x^2+1}-3x)$