Câu hỏi trắc nghiệm Lượng Giác

Câu hỏi trắc nghiệm Lượng Giác

11th Grade

34 Qs

quiz-placeholder

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Câu hỏi trắc nghiệm Lượng Giác

Câu hỏi trắc nghiệm Lượng Giác

Assessment

Quiz

Mathematics

11th Grade

Practice Problem

Hard

Created by

Thanh Thanh

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34 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Đẳng thức đúng là:

sin^2 x + cos^2 x = 1

sin^2 x − cos^2 x = 1

tan^2 x + 1 = csc^2 x

1 + cot^2 x = sec^2 x

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Công thức đúng của cos 2x là:

1 − 2 sin^2 x

2 sin^2 x − 1

2 cos^2 x + 1

1 + 2 sin^2 x

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

tan(α+β) bằng:

(tanα + tanβ)/(1 − tanα tanβ)

(tanα + tanβ)/(1 + tanα tanβ)

(tanα − tanβ)/(1 − tanα tanβ)

(tanα − tanβ)/(1 + tanα tanβ)

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

sin(π/2 − x) bằng:

cos x

sin x

−cos x

−sin x

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Giá trị sin 30° là:

1/2

√3/2

√2/2

0

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Giá trị tan 45° là:

1

√3

1/√3

0

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

π rad bằng bao nhiêu độ?

180°

90°

360°

120°

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