1. ( )因為40° < 50°,
所以cos40° < cos50°。
高一補強數學小考-2
Quiz
•
Mathematics
•
10th Grade
•
Hard
縣立田中高中林佳慧 縣立田中高中林佳慧
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. ( )因為40° < 50°,
所以cos40° < cos50°。
O
X
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2. 若直角△ABC~直角△A'B'C',
且∠C =∠C' = 90°,則sinA = sinA'。
O
X
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3. 若θ為銳角,則tanθ = 。
O
X
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4.設直角三角形中,有一銳角為20°,
則sin20°的值與所取的三角形大小無關。
O
X
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
,則sinθ = 3,cosθ = 4。
O
X
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6. 若0° < θ < 45°,則sinθ < cosθ < tanθ。
O
X
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
7. 若θ與ϕ皆為銳角,且θ + ϕ = 90°,則sinθ = cosϕ。
O
X
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