三角函數_倍角
Authored by Abbe Leong
Mathematics
10th Grade
Used 2+ times
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6 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
sin2A
sinAcosA
2sinAcosA
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
cos2A
2sinAcosA
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2sin15cos15
cos30
sin30
cos15
sin15
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
cos25
sin25
cos50
sin50
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
tan2A
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
以上皆非
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