π |
2 |
1 |
5 |
1 |
1+sinx |
1 |
1+cosx |
2sin2α-3sinαcosα-2cos2α |
sin2α+cos2α |
2tan2α-3tanα-2 |
1+tan2α |
8-6-2 |
1+4 |
1 |
5 |
12 |
25 |
2+sinx+cosx |
1+(sinx+cosx)+sinx•cosx |
2+
| ||||
1+
|
55 |
18 |
49 |
25 |
π |
2 |
7 |
5 |
x2 |
a2 |
y2 |
b2 |
x2 |
m2 |
y2 |
b2 |
A.锐角三角形 | B.钝角三角形 | C.直角三角形 | D.等腰三角形 |
π |
2 |
x+y |
2 |
1 |
2 |
1 |
4 |
3 |
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