1 |
3 |
3 |
10 |
A.1 | B.2 | C.3 | D.0 |
sinθcosθ |
sin2θ+cos2θ |
tanθ |
tan2θ+1 |
| ||
(
|
3 |
10 |
π |
3 |
5π |
12 |
π |
3 |
π |
6 |
x2-1 |
1-x2 |
A.命题“若x2-3x+2=0,则x=1”的逆否命题为:“若x≠1,则x2-3x+2≠0” | ||
B.“a>1”是“
| ||
C.若p∨q为真命题,则p、q均为真命题 | ||
D.若命题p:“存在x0∈R,2x0≤0”,则¬p:“对任意的x∈R,2x>0”. |
cosB-cosC |
sinC-sinB |
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