bilfen trigo 3

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lopital

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May 4, 2015, 1:17:25 AM5/4/15
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0 <= x <= 2pi   

ve  3cos2x + 8sinx + 5 = 0   olduğuna göre, sinx?


-2/3

-1/3

0

1/3

2/3


hasan38

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May 4, 2015, 1:22:06 AM5/4/15
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Burada da cos2x yerine 1-2sin²x yazıp çarpanlara ayırın sinx=2/3 olduğunu gorursunuz
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