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锐角三角函数定义、特别角函数值、余角关系

Authored by 何莉虹老师 何莉虹老师

Mathematics

9th - 10th Grade

CCSS covered

Used 13+ times

锐角三角函数定义、特别角函数值、余角关系
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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

请问sin  θ\theta   = ?

3/5

4/3

4/5

3/4

Tags

CCSS.HSG.SRT.C.6

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

请问sec θ\theta  =?

4/5

5/4

3/5

5/3

Tags

CCSS.HSG.SRT.C.6

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

下列哪个选项正确?

cosθ = 17/15

sinθ = 8/15

tanθ = 15/8

sinθ = 8/17

Tags

CCSS.HSG.SRT.C.6

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列何者正確?

sin 60° = 1/2

sec 60° = 2

tan 30° = √3

cot 45° = 33\frac{\sqrt{3}}{3}

Tags

CCSS.HSG.SRT.C.7

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列敘述何者錯誤?

cos(90° - θ) = sinθ

cot (90° - θ) = cosθ

sec(90° - θ) = cosecθ

sin(90° - θ) = cosθ

Tags

CCSS.HSG.SRT.C.7

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

對邊/斜邊 即是

cosecθ

cosθ

sinθ

cotθ

Tags

CCSS.HSG.SRT.C.7

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

斜邊/鄰邊 即是

tanθ

secθ

cosθ

sinθ

Tags

CCSS.HSG.SRT.C.6

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