tanA•tanB |
tanA+tanB |
tanA•tanB |
tanA+tanB |
sinAsinB |
sinAcosB+cosAsinB |
sinC |
cocC |
abcosC |
1004 |
abcosC |
1004 |
mab•
| ||
1004 |
m(a2+b2-c2) |
2008 |
2008(a2+b2) |
a2+b2-c2 |
2008(a2+b2) | ||
a2+b2-
|
a |
2 |
A+B |
2 |
A-B |
2 |
a |
| ||
2 |
A.3 | B.
| C.-3 | D.-
|
π |
6 |
1-sin2x |
cos2-sin2x |
5 |
4 |
π |
4 |
3 |
5 |
3 |
5 |
π |
2 |
4 |
5 |
© 2017-2019 超级试练试题库,All Rights Reserved.