Search Header Logo

toán

Authored by pi sóp

Mathematics

KG

Used 1+ times

toán
AI

AI Actions

Add similar questions

Adjust reading levels

Convert to real-world scenario

Translate activity

More...

    Content View

    Student View

13 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

C18: cho cos=4/5 với 0<anfa<pi/2.tính sin anfa

Sin anfa=1/5

-1/5

3/5

+-3/5

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Cho anfa=-4/5 với 3pi/2<anfa<2pi khi đó

Media Image

Sina=4/căn41,cos 5căn 41

Sina=-4/căn41,cosa=5/căn41

Sina=4/căn41,cosa=-5/căn 41

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Cho cosa =-2/5(pi/2<a<pi) khi đó tana =

Căn 21/3

-căn 21/5

Căn 21/5

-căn 21/2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Nghiệm của prtinh sin3x=cosx là

X=k pi;x=k pi/2

X=pi/8+k pi/2;x=pi/4+k pi

X=k2pi;x=pi/2+k2pi

X=k pi; x=pi/4 +kpi

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Pt cosx= cos pi/3 có tat cả cac nghịm là

X=2pi/3+k2pi(kEz)

X=+-pi/3+k pi

X=+-pi/3+k2pi

=pi/3+k2pi

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

tìm txd D của hàm số y=2025/sinx

R

R\{0}

R\{kpi,kEz}

R\{pi/2+k pi,kEz)

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Trg cac ham so sau, ham so nao co do thi doi xung qua truc tung

Y=sinx cosx

Y=sin5x.cos(x-pi/2)

y=tanx/tan2 x+1

y=cosxsin3x

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Google

Continue with Google

Email

Continue with Email

Classlink

Continue with Classlink

Clever

Continue with Clever

or continue with

Microsoft

Microsoft

Apple

Apple

Others

Others

Already have an account?