แบบทดสอบ เรื่อง  สูตร

แบบทดสอบ เรื่อง สูตร

11th Grade

10 Qs

quiz-placeholder

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แบบทดสอบ เรื่อง  สูตร

แบบทดสอบ เรื่อง สูตร

Assessment

Quiz

Mathematics

11th Grade

Practice Problem

Medium

Created by

นงลักษณ์ ฉิมทัต

Used 14+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 tan105°\tan105\degree   ตรงกับข้อใด

 tan60°tan45°1+tan60°tan45°\frac{\tan60\degree-\tan45\degree}{1+\tan60\degree\tan45\degree}  

 tan60°+tan45°1tan60°tan45°\frac{\tan60\degree+\tan45\degree}{1-\tan60\degree\tan45\degree}  

 tan60°+tan45°1+tan60°tan45°\frac{\tan60\degree+\tan45\degree}{1+\tan60\degree\tan45\degree}  

 tan60°tan45°1tan60°tan45°\frac{\tan60\degree-\tan45\degree}{1-\tan60\degree\tan45\degree}  

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 sin20°cos25°+cos20°sin25°\sin20\degree\cos25\degree+\cos20\degree\sin25\degree  คือข้อใด

 22\frac{\sqrt{2}}{2}  

 22-\frac{\sqrt{2}}{2}  

 22\frac{2}{\sqrt{2}}  

 22-\frac{2}{\sqrt{2}}  

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 cos105°cos60°+sin105°sin60°\cos105\degree\cos60\degree+\sin105\degree\sin60\degree  คือข้อใด

 cos165°\cos165\degree  

 cos45°\cos45\degree  

 sin165°\sin165\degree  

 sin45°\sin45\degree  

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

ข้อใดผิด

sin(A+B)+sin(AB)=2sinAcosB\sin\left(A+B\right)+\sin\left(A-B\right)=2\sin A\cos B

sin(A+B)sin(AB)=2cosAsinB\sin\left(A+B\right)-\sin\left(A-B\right)=2\cos A\sin B

cos(A+B)+cos(AB)=2cosAcosB\cos\left(A+B\right)+\cos\left(A-B\right)=2\cos A\cos B

cos(A+B)cos(AB)=2sinAsinB\cos\left(A+B\right)-\cos\left(A-B\right)=2\sin A\sin B

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 12cos45°sin15°\frac{1}{2}\cos45\degree\sin15\degree  เปลี่ยนรูปเป็นผลบวกหรือผลต่าง คือข้อใด

 14(sin60°sin30°)\frac{1}{4}\left(\sin60\degree-\sin30\degree\right)  

 14(sin60°+sin30°)\frac{1}{4}\left(\sin60\degree+\sin30\degree\right)  

 4(sin60°sin30°)4\left(\sin60\degree-\sin30\degree\right)  

 4(sin60°+sin30°)4\left(\sin60\degree+\sin30\degree\right)  

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 cos35°+cos25°\cos35\degree+\cos25\degree  เปลี่ยนรูปเป็นผลคูณตรงกับข้อใด

 2sin50°cos5°2\sin50\degree\cos5\degree  

 2cos50°sin5°2\cos50\degree\sin5\degree  

 2cos50°cos5°2\cos50\degree\cos5\degree  

 2sin50°sin5°-2\sin50\degree\sin5\degree  

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 2sin(5π12) sin(π12)2\sin\left(\frac{5\pi}{12}\right)\ \sin\left(\frac{\pi}{12}\right)   เปลี่ยนรูปเป็นผลบวกหรือผลต่าง คือข้อใด

 cos(π2)+cos(π3)\cos\left(\frac{\pi}{2}\right)+\cos\left(\frac{\pi}{3}\right)  

 cos(π2)cos(π3)\cos\left(\frac{\pi}{2}\right)-\cos\left(\frac{\pi}{3}\right)  

 cos(π2)+cos(π3)-\cos\left(\frac{\pi}{2}\right)+\cos\left(\frac{\pi}{3}\right)  

 cos(π2)cos(π3)-\cos\left(\frac{\pi}{2}\right)-\cos\left(\frac{\pi}{3}\right)  

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