
三角函數的圖形
Mathematics
11th Grade
Used 3+ times

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40 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
請問下列哪一個是正弦函數的定義域?
A. x ∈ R
B. y ∈ R
C. x ∈ [0, 2π]
D. y ∈ [−1, 1]
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
根據正弦函數 y = sin x 的圖形,請問其值域為何?
A. y ∈ R
B. y ∈ [−1, 1]
C. y ∈ [0, 2π]
D. y ∈ [−π, π]
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
觀察正弦函數 y = sin x 的圖形,請問其對稱於哪一條直線?
A. x = 0
B. x = π
D. y = 0
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
正弦函數 y = sin x 的對稱性可由什麼公式得知?
A. sin(−x) = −sin x
B. sin(−x) = sin x
C. sin(x) = cos x
D. sin(x) = −cos x
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
請問正弦函數的頻率是什麼意思?
頻率表示單位時間內事件重複發生的次數,即週期的倒數。
頻率是波的最大值與最小值之間的差。
頻率是波的起點到終點的距離。
頻率是波的速度與時間的乘積。
6.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
將 y = sinx 水平伸縮 2 倍、鉛直伸縮 3 倍後,新函數為 y = ______。
y = 2sin(3x)
y = sin(2x) + 3
y = 3sin2x
7.
MULTIPLE CHOICE QUESTION
30 sec • 4 pts
C. 1
D. 2
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