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1 |
2 |
CM |
CN |
3 |
4 |
科目:高中數(shù)學(xué) 來源: 題型:
OC |
OA |
OB |
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3 |
5 |
4 |
5 |
sin2α+sin2α |
cos2α+cos2α |
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科目:高中數(shù)學(xué) 來源: 題型:
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A、[-
| ||
B、[-1,1) | ||
C、[-
| ||
D、[-1,0) |
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