Free Printable 삼각방정식

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삼각방정식

Total questions: 11

Worksheet time: 31mins

Name

Class

Date

1.

다음 삼각방정식을 풀어라. (단, $0\le x\le2\pi$ )

$\cos x=\frac{\sqrt[]{3}}{2}$

a)

$x=\frac{1}{6}\pi$

b)

$x=\frac{5}{6}\pi$

c)

$x=\frac{7}{6}\pi$

d)

$x=\frac{11}{6}\pi$

2.

다음 삼각방정식을 풀어라. (단, $0\le x\le2\pi$ )

$\tan x=-1$

a)

$x=\frac{1}{4}\pi$

b)

$x=\frac{3}{4}\pi$

c)

$x=\frac{5}{4}\pi$

d)

$x=\frac{7}{4}\pi$

3.

다음 삼각방정식을 풀어라. (단, $0\le x\le2\pi$ )

$\sin x=-\frac{1}{2}$

a)

$x=\frac{1}{6}\pi$

b)

$x=\frac{5}{6}\pi$

c)

$x=\frac{7}{6}\pi$

d)

$x=\frac{11}{6}\pi$

4.

다음 삼각방정식을 풀어라. (단, $0\le x\le2\pi$ )

$2\cos x=\sqrt[]{2}$

a)

$x=\frac{1}{4}\pi$

b)

$x=\frac{3}{4}\pi$

c)

$x=\frac{7}{4}\pi$

d)

$x=\frac{5}{4}\pi$

5.

다음 삼각함수의 값을 구하여라.

$\sin\ \frac{4}{3}\pi$

a)

$-\frac{\sqrt[]{3}}{2}$

b)

$-\frac{1}{2}$

c)

$\frac{1}{2}$

d)

$\frac{\sqrt[]{3}}{2}$

6.

다음 삼각함수의 값을 구하여라.

$\cos\ \frac{5}{4}\pi$

a)

$-\frac{\sqrt[]{2}}{2}$

b)

$-\frac{\sqrt[]{3}}{2}$

c)

$\frac{1}{2}$

d)

$\frac{\sqrt[]{3}}{2}$

7.

다음 삼각함수의 값을 구하여라.

$\tan\frac{5}{6}\pi$

a)

$-\frac{\sqrt[]{3}}{3}$

b)

$-1$

c)

$\sqrt[]{3}$

d)

$1$

8.

다음 삼각함수의 값을 구하여라.

$\cos\ \frac{3}{4}\pi$

a)

$1$

b)

$-\frac{1}{2}$

c)

$-\frac{\sqrt[]{2}}{2}$

d)

$-\frac{\sqrt[]{3}}{2}$

9.

다음 삼각함수의 값을 구하여라.

$\sin\ \frac{5}{6}\pi$

a)

$-\frac{1}{2}$

b)

$\frac{1}{2}$

c)

$\frac{\sqrt[]{3}}{2}$

d)

$\frac{\sqrt[]{2}}{2}$

10.

다음 삼각함수의 값을 구하여라.

$\tan\left(-\frac{2}{3}\pi\right)$

a)

$-\sqrt[]{3}$

b)

$-1$

c)

$-\frac{\sqrt[]{3}}{3}$

d)

$\sqrt[]{3}$

11.

다음 삼각방정식을 풀어라. (단, $0\le x\le2\pi$ )

$\sin x=-\frac{\sqrt[]{2}}{2}$

a)

$x=\frac{5}{4}\pi$

b)

$x=\frac{3}{2}\pi$

c)

$x=\frac{7}{4}\pi$

d)

$x=2\pi$

100 %

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