7 |
5 |
π |
4 |
7 |
5 |
49 |
25 |
49 |
25 |
24 |
25 |
1 |
25 |
π |
4 |
1 |
5 |
7 |
5 |
3 |
5 |
4 |
5 |
sinα |
cosα |
3 |
4 |
3 |
4 |
3 |
A.120° | B.105° | C.90° | D.75° |
1 |
4 |
cos2α |
sin2α |
A.2 | B.-3 | C.4 | D.6 |
a2 |
x |
b2 |
y |
(a+b)2 |
x+y |
a |
x |
b |
y |
1 |
3-tan2x |
9 |
8+sec2x |
1 |
2 |
(cosa-sina)2 |
cos2a |
π |
4 |
π |
4 |
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