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三角函數公式測驗

Authored by 吳宛真 吳宛真

Mathematics

9th Grade

三角函數公式測驗
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8 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

sin(α+β)等於sin α cos β加cos α sin β的公式是?

cos α sin β

sin α cos β加cos α sin β

cos α cos β

sin α sin β

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

sin(α-β)等於sin α cos β減cos α sin β的公式是?

sin α sin β

cos α cos β

cos α sin β

sin α cos β加cos α sin β

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

tan(α+β)等於1減tan α tan β分之tan α加tan β的公式是?

1減tan α tan β分之tan α加tan β

tan α tan β

1加tan α tan β分之tan α減tan β

tan α加tan β

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

sin 15度等於多少?

4分之根號6加根號2

4分之根號6減根號2

根號2分之1乘以2分之根號3

根號2分之1乘以2分1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

sin(α-β)等於sin α cos β減cos α sin β的公式中,負角關係sin(-θ)等於?

-cos θ

cos θ

sin θ

-sin θ

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

tan(α-β)等於1加tan α tan β分之tan α減tan β的公式中,1加tan α tan β分之tan α減tan β等於?

1加tan α tan β分之tan α減tan β

tan α加tan β

tan α tan β

1減tan α tan β分之tan α加tan β

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

sin(α+β)等於sin α cos β加cos α sin β的公式中,cos(90度-α)等於?

cos(90度-α)

sin(90度-α)

cos α

sin α

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