1 |
2 |
1 |
2 |
1 |
2 |
1 |
an |
A.若m∥α,m∥β,则α∥β | B.若m∥α,m∥n,则n∥α |
C.若m⊥α,α⊥β,则m∥β | D.若m⊥α,m∥β,则α⊥β |
∫ | π-π |
C | r+1n+1 |
C | r+1n |
C | rn |
1 |
n+1 |
1 |
n+2 |
1 |
n+3 |
1 |
2n |
13 |
24 |
1 |
k+1 |
1 |
k+2 |
1 |
k+3 |
1 |
2k |
1 |
2k+1 |
1 |
2(k+1) |
13 |
24 |
A.0 | B.1 | C.2 | D.3 |
A.命题“∃x0∈R,
| ||
B.命题“p∀q为真”是命题“p∧q为真”的充分不必要条件 | ||
C.命题“若am2≤bm2,则a≤b”是假命题 | ||
D.命题“若sinx=siny,则x=y”的逆否命题为真命题 |
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