S1 |
S2 |
2asin2θ |
2+sin2θ |
x |
sinθ |
x |
sinθ |
2asin2θ |
2+sin2θ |
2asin2θ |
2+sin2θ |
4a2(sin2θ)2 |
(2+sin2θ)2 |
s1 |
s2 |
(2+sin2θ)2 |
2sin2θ |
π |
2 |
s1 |
s2 |
(2+sin2θ)2 |
2sin2θ |
1 |
2 |
4 |
sin2θ |
9 |
2 |
π |
4 |
9 |
2 |
1 |
x |
16x |
x2+1 |
A.16 | B.8 | C.4 | D.非前三者 |
2 |
3 |
1 |
x |
A.0个 | B.1个 | C.2个 | D.3个 |
2 |
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