Free Printable lượng giác

1.

sin( $\pi$ - x )

a)

-cosx

b)

-sinx

c)

cosx

d)

sinx

2.

cos( $\pi-x$ )

a)

cosx

b)

sinx

c)

-cosx

d)

-sinx

3.

tan( $\pi-x$ )

a)

tanx

b)

-tanx

c)

cotx

d)

-cotx

4.

$\cot\left(\pi-x\right)$

a)

cotx

b)

-cotx

c)

cosx

d)

-cosx

5.

sin( $\frac{\pi}{2}-x$ )

a)

cosx

b)

-cosx

c)

sinx

d)

-sõm

6.

$\cos\left(\frac{\pi}{2}-x\right)$

a)

-sinx

b)

sinx

c)

cosx

d)

-cosx

7.

$\tan\left(\frac{\pi}{2}-x\right)$

a)

cotx

b)

-cotx

c)

tanx

d)

-tanx

8.

cot( $\frac{\pi}{2}-x$ )

a)

cotx

b)

-cotx

c)

tanx

d)

-tanx

9.

sin(x+k2 $\pi$ )

a)

sinx

b)

-sinx

c)

cosx

d)

-cosx

10.

cos(x+k2 $\pi$ )

a)

cos(-x)

b)

-cosx

c)

sinx

d)

-sinx

11.

$\tan(x+k2\pi)$

a)

tanx

b)

-tanx

c)

cotx

d)

-cotx

12.

$\cot\left(x+k2\pi\right)$

a)

cotx

b)

-cotx

c)

cot(-x)

d)

tanx

13.

sin(-x)

a)

sinx

b)

-sinx

c)

cosx

d)

-cosx

14.

cos(-x)

a)

cosx

b)

-cosx

c)

sinx

d)

-sinx

15.

tan(-x)

a)

tanx

b)

-tanx

c)

cotx

d)

-cotx

16.

cot(-x)

a)

cosx

b)

-cosx

c)

cotx

d)

-cotx

17.

mối quan hệ giữa sinx và cosx

a)

$\left(\sin x\right)^2\ +\left(\cos x\right)^2=1$

b)

$\left(\sin x\right)^2\ +\left(\cos x\right)^2=0$

c)

$\sin x\ +\cos x=1$

d)

$\sin x\ +\cos x=0$

18.

mối quan hệ giữa tanx và cotx

a)

tanx+cotx=1

b)

tanx.cotx=1

19.

$1+\left(\tan x\right)^2$

a)

$\frac{1}{\sin x}$

b)

$\frac{1}{\left(\sin x\right)^2}$

c)

$\frac{1}{\cos x}$

d)

$\frac{1}{\left(\cos x\right)^2}$

20.

$1+\left(\cot x\right)^2$

a)

$\frac{1}{\left(\sin x\right)^2}$

b)

$\frac{1}{\left(\cos x\right)^2}$

21.

Chọn 2 đáp án đúng:

tanx =

a)

$\frac{\sin x}{\cos x}$

b)

$\frac{\cos x}{\sin x}$

c)

$\sqrt[]{\frac{1}{\left(\cos x\right)^2}-1}$

d)

$\frac{1}{\left(\cos x\right)^2}-1$

22.

sin(x+ lẻ. $\pi$ )

a)

-sinx

b)

sinx

c)

cosx

d)

-cosx

23.

cos(x+ lẻ. $\pi$ )

a)

cosx

b)

-cosx

c)

sinx

d)

-sinx

24.

tan(x+ lẻ $\pi$ )

a)

tanx

b)

-tanx

c)

cotx

d)

-cotx

25.

cot(x+ lẻ. $\pi$ )

a)

-cosx

b)

cosx

c)

cotx

d)

-cotx

26.

sin(a+b)

a)

sina.cosb-cosa.sinb

b)

sina.cosb+cosa.sinb

c)

sina.sinb-cosa.cosb

d)

cosa.cosb-sina.sinb

27.

sin(a-b)

a)

cosa.cosb-sina.sinb

b)

sinb.cosa-cosb.sina

c)

sina.cosb-sinb.cosa

d)

sina.cosb+cosa.sinb

28.

sin2a

a)

2sinacosb

b)

2sinacosa

c)

2cosa-1

d)

2sinbcosc

29.

cos(a-b)

a)

cosa.cosb-sina.sinb

b)

cosa.cosb+sina.sinb

c)

sina.sinb-cosa.cosb

d)

cosa.sinb+cosb.sina

30.

cos(a+b)

a)

cosa-cosb

b)

cosacosb+sinasinb

c)

cosacosb-sinasinb

d)

sina-sinb

31.

chọn 3 đáp án đúng:

cos2a

a)

$\left(\sin x\right)^2-\left(\cos x\right)^2$

b)

$\left(\cos x\right)^2-\left(\sin x\right)^2$

c)

$1-2\left(\sin x\right)^2$

d)

$2\left(\sin x\right)^2-1$

e)

$2\left(\cos x\right)^2-1$

32.

tan(a+b)

a)

$\frac{\tan a+\tan b}{1-\tan a.\tan b}$

b)

$\frac{\tan a+\tan b}{1+\tan a.\tan b}$

c)

$\frac{\tan a-\tan b}{1-\tan a.\tan b}$

d)

$\frac{\tan a-\tan b}{1+\tan a.\tan b}$

33.

tan(a-b)

a)

$\frac{\tan a+\tan b}{1-\tan a.\tan b}$

b)

$\frac{\tan a+\tan b}{1+\tan a.\tan b}$

c)

$\frac{\tan a-\tan b}{1-\tan a.\tan b}$

d)

$\frac{\tan a-\tan b}{1+\tan a.\tan b}$

34.

tan2a

a)

$\frac{2\tan a}{1-\left(\tan a\right)^2}$

b)

$\frac{2\tan a}{1+\left(\tan a\right)^2}$

c)

$\frac{2\tan a}{1-2\tan a}$

d)

$\frac{2\left(\tan a\right)^2}{1-\left(\tan a\right)^2}$

35.

$\sin\left(-30\right)$

a)

sin30

b)

-cos30

c)

-sin30

d)

cos30

36.

Đáp án câu 87

a)

A

b)

B

c)

C

d)

D

37.

ĐÁP ÁN CÂU 88

a)

A

b)

B

c)

C

d)

D

38.

ĐÁP ÁN CÂU 89

a)

B

b)

A

c)

D

d)

C

39.

ĐÁP ÁN CÂU 80

a)

A

b)

B

c)

C

d)

D

40.

sin f(x) = sin g(x)

a)

f(x) = g(x) + k2 $\pi$

b)

f(x) = -g(x) + k2 $\pi$

c)

f(x) = $\pi$ - g(x) + k2 $\pi$

d)

f(x) = g(x) + k $\pi$

41.

cos x = cos m

a)

x= m + k2 $\pi$

b)

x= -m + k $\pi$

c)

x= -m + k2 $\pi$

d)

x= $\pi$ -m + k2 $\pi$

42.

tan x = tan m

a)

x= m + k2 $\pi$

b)

x= m + k $\pi$

c)

x= -m + k2 $\pi$

d)

x= -m + k $\pi$

43.

cot x = cot m

a)

x= m + k2 $\pi$

b)

x= -m + k2 $\pi$

c)

x= -m + k $\pi$

d)

x= m + k $\pi$

44.

sin x + cos x =

a)

sin (x- $\frac{\pi}{4}$ )

b)

$\sqrt[]{2}$ sin (x- $\frac{\pi}{4}$ )

c)

$\sqrt[]{2}$ cos(x- $\frac{\pi}{4}$ )

d)

$\sqrt[]{2}$ sin (+ $\frac{\pi}{4}$ )

45.

sin x - cos x

a)

$\sqrt[]{2}$ sin (x- $\frac{\pi}{4}$ )

b)

$\sqrt[]{2}$ cos(x- $\frac{\pi}{4}$ )

c)

$-\sqrt[]{2}$ sin (x- $\frac{\pi}{4}$ )

d)

$-\sqrt[]{2}$ cos(x+ $\frac{\pi}{4}$ )

46.

cos x - sin x

a)

$\sqrt[]{2}$ cos (x- $\frac{\pi}{4}$ )

b)

$\sqrt[]{2}$ cos (x+ $\frac{\pi}{4}$ )

c)

- $\sqrt[]{2}$ sin (x- $\frac{\pi}{4}$ )

d)

-sin (x- $\frac{\pi}{4}$ )

47.

cos x + $\sqrt[]{3}$ sin x

a)

2sin(x+ $\frac{\pi}{3}$ )

b)

2sin(x+ $\frac{\pi}{6}$ )

c)

2cos(x- $\frac{\pi}{3}$ )

d)

2cos(x- $\frac{\pi}{6}$ )

48.

sin x + $\sqrt[]{3}$ cos x

a)

2sin(x+ $\frac{\pi}{3}$ )

b)

2sin(x+ $\frac{\pi}{6}$ )

c)

2cos(x- $\frac{\pi}{3}$ )

d)

2cos(x- $\frac{\pi}{6}$ )

49.

sin x - $\sqrt[]{3}$ cos x

a)

2sin(x- $\frac{\pi}{3}$ )

b)

2sin(x+ $\frac{\pi}{6}$ )

c)

2cos(x- $\frac{\pi}{3}$ )

d)

-2cos(x+ $\frac{\pi}{6}$ )

50.

cos x - $\sqrt[]{3}$ sin x

a)

2sin(x+ $\frac{\pi}{3}$ )

b)

-2sin(x- $\frac{\pi}{6}$ )

c)

2cos(x+ $\frac{\pi}{3}$ )

d)

2cos(x- $\frac{\pi}{6}$ )

lượng giác

Total questions: 50

Worksheet time: 48mins

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