Giá trị lượng giác của một góc

Giá trị lượng giác của một góc

10th Grade

20 Qs

quiz-placeholder

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Giá trị lượng giác của một góc

Giá trị lượng giác của một góc

Assessment

Quiz

Mathematics

10th Grade

Hard

Created by

Phạm CT)

Used 30+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 Giá trị củacos45°+sin45°\cos45\degree+\sin45\degree  là

 11  

 2\sqrt{2}  

 3\sqrt{3}  

 00  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 tan30°+cot30°\tan30\degree+\cot30\degree  là

 43\frac{4}{\sqrt{3}}  

 1+33\frac{1+\sqrt{3}}{3}  

 23\frac{2}{\sqrt{3}}  

 22  

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Đẳng thức nào sau đây đúng

 sin150°=32\sin150\degree=-\frac{\sqrt{3}}{2}  

 cos150°=32\cos150\degree=\frac{\sqrt{3}}{2}  

 tan150°=13\tan150\degree=-\frac{1}{\sqrt{3}}  

 cot150°=3\cot150\degree=\sqrt{3}  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tính  P=cos30°cos60°sin30°sin60°P=\cos30\degree\cos60\degree-\sin30\degree\sin60\degree  

 P=3P=\sqrt{3}  

 P=32P=\frac{\sqrt{3}}{2}  

 P=1P=1  

 P=0P=0  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tính  P=sin30°cos60°+sin60°cos30°P=\sin30\degree\cos60\degree+\sin60\degree\cos30\degree  

 P=1P=1  

 P=0P=0  

 P=3P=\sqrt{3}  

 P=3P=-\sqrt{3}  

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Đẳng thức nào sau đây sai

 sin45°+cos45°=2\sin45\degree+\cos45\degree=\sqrt{2}  

 sin30°+cos60°=1\sin30\degree+\cos60\degree=1  

 sin60°+cos150°=0\sin60\degree+\cos150\degree=0  

 sin120°+cos30°=0\sin120\degree+\cos30\degree=0  

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Đẳng thức nào sau đây sai

sin0°+cos0°=0\sin0\degree+\cos0\degree=0

sin90°+cos90°=1\sin90\degree+\cos90\degree=1

sin180°+cos180°=1\sin180\degree+\cos180\degree=-1

sin60°+cos60°=3+12\sin60\degree+\cos60\degree=\frac{\sqrt{3}+1}{2}

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