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인기 있는 삼각법 >

sin^2(2x)= 3/4

해법

sin^{2} (2 x) = \frac{3}{4}

해법

x = \frac{π}{6} + πn, x = \frac{π}{3} + πn, x = \frac{2 π}{3} + πn, x = \frac{5 π}{6} + πn

+1

도

x = 3 0^{\circ} + 18 0^{\circ} n, x = 6 0^{\circ} + 18 0^{\circ} n, x = 12 0^{\circ} + 18 0^{\circ} n, x = 15 0^{\circ} + 18 0^{\circ} n

솔루션 단계

sin^{2} (2 x) = \frac{3}{4}

대체로 해결

sin^{2} (2 x) = \frac{3}{4}

하게:

sin (2 x) = u

u^{2} = \frac{3}{4}

u^{2} = \frac{3}{4} : u = \frac{3}{2}, u = - \frac{3}{2}

u^{2} = \frac{3}{4}

위해서

x^{2} = f (a)

해결책은

x = f (a), - f (a)

u = \frac{3}{4}, u = - \frac{3}{4}

\frac{3}{4} = \frac{3}{2}

\frac{3}{4}

급진적인 규칙 적용:

라면

a \geq 0, b \geq 0

= \frac{3}{4}

4 = 2

4

인자 수:

4 = 2^{2}

= 2^{2}

급진적인 규칙 적용:

2^{2} = 2

= 2

= \frac{3}{2}

- \frac{3}{4} = - \frac{3}{2}

- \frac{3}{4}

\frac{3}{4}

단순화하세요:

\frac{3}{2}

\frac{3}{4}

급진적인 규칙 적용:

라면

a \geq 0, b \geq 0

= \frac{3}{4}

4 = 2

4

인자 수:

4 = 2^{2}

= 2^{2}

급진적인 규칙 적용:

2^{2} = 2

= 2

= \frac{3}{2}

= - \frac{3}{2}

u = \frac{3}{2}, u = - \frac{3}{2}

뒤로 대체

u = sin (2 x)

sin (2 x) = \frac{3}{2}, sin (2 x) = - \frac{3}{2}

sin (2 x) = \frac{3}{2}, sin (2 x) = - \frac{3}{2}

sin (2 x) = \frac{3}{2} : x = \frac{π}{6} + πn, x = \frac{π}{3} + πn

sin (2 x) = \frac{3}{2}

일반 솔루션

sin (2 x) = \frac{3}{2}

sin (x)

주기율표

2 πn

주기:

x 0 \frac{π}{6} \frac{π}{4} \frac{π}{3} \frac{π}{2} \frac{2 π}{3} \frac{3 π}{4} \frac{5 π}{6} sin (x) 0 \frac{1}{2} \frac{2}{2} \frac{3}{2} 1 \frac{3}{2} \frac{2}{2} \frac{1}{2} x π \frac{7 π}{6} \frac{5 π}{4} \frac{4 π}{3} \frac{3 π}{2} \frac{5 π}{3} \frac{7 π}{4} \frac{11 π}{6} sin (x) 0 - \frac{1}{2} - \frac{2}{2} - \frac{3}{2} - 1 - \frac{3}{2} - \frac{2}{2} - \frac{1}{2}

2 x = \frac{π}{3} + 2 πn, 2 x = \frac{2 π}{3} + 2 πn

2 x = \frac{π}{3} + 2 πn, 2 x = \frac{2 π}{3} + 2 πn

2 x = \frac{π}{3} + 2 πn

해결 :

x = \frac{π}{6} + πn

2 x = \frac{π}{3} + 2 πn

양쪽을 다음으로 나눕니다

2

2 x = \frac{π}{3} + 2 πn

양쪽을 다음으로 나눕니다

2

\frac{2 x}{2} = \frac{\frac{π}{3}}{2} + \frac{2 πn}{2}

단순화

\frac{2 x}{2} = \frac{\frac{π}{3}}{2} + \frac{2 πn}{2}

\frac{2 x}{2}

간소화하다 :

x

\frac{2 x}{2}

숫자를 나눕니다:

\frac{2}{2} = 1

= x

\frac{\frac{π}{3}}{2} + \frac{2 πn}{2}

간소화하다 :

\frac{π}{6} + πn

\frac{\frac{π}{3}}{2} + \frac{2 πn}{2}

\frac{\frac{π}{3}}{2} = \frac{π}{6}

\frac{\frac{π}{3}}{2}

분수 규칙 적용:

\frac{\frac{b}{c}}{a} = \frac{b}{c \cdot a}

= \frac{π}{3 \cdot 2}

숫자를 곱하시오:

3 \cdot 2 = 6

= \frac{π}{6}

\frac{2 πn}{2} = πn

\frac{2 πn}{2}

숫자를 나눕니다:

\frac{2}{2} = 1

= πn

= \frac{π}{6} + πn

x = \frac{π}{6} + πn

x = \frac{π}{6} + πn

x = \frac{π}{6} + πn

2 x = \frac{2 π}{3} + 2 πn

해결 :

x = \frac{π}{3} + πn

2 x = \frac{2 π}{3} + 2 πn

양쪽을 다음으로 나눕니다

2

2 x = \frac{2 π}{3} + 2 πn

양쪽을 다음으로 나눕니다

2

\frac{2 x}{2} = \frac{\frac{2 π}{3}}{2} + \frac{2 πn}{2}

단순화

\frac{2 x}{2} = \frac{\frac{2 π}{3}}{2} + \frac{2 πn}{2}

\frac{2 x}{2}

간소화하다 :

x

\frac{2 x}{2}

숫자를 나눕니다:

\frac{2}{2} = 1

= x

\frac{\frac{2 π}{3}}{2} + \frac{2 πn}{2}

간소화하다 :

\frac{π}{3} + πn

\frac{\frac{2 π}{3}}{2} + \frac{2 πn}{2}

\frac{\frac{2 π}{3}}{2} = \frac{π}{3}

\frac{\frac{2 π}{3}}{2}

분수 규칙 적용:

\frac{\frac{b}{c}}{a} = \frac{b}{c \cdot a}

= \frac{2 π}{3 \cdot 2}

숫자를 곱하시오:

3 \cdot 2 = 6

= \frac{2 π}{6}

공통 요인 취소:

2

= \frac{π}{3}

\frac{2 πn}{2} = πn

\frac{2 πn}{2}

숫자를 나눕니다:

\frac{2}{2} = 1

= πn

= \frac{π}{3} + πn

x = \frac{π}{3} + πn

x = \frac{π}{3} + πn

x = \frac{π}{3} + πn

x = \frac{π}{6} + πn, x = \frac{π}{3} + πn

sin (2 x) = - \frac{3}{2} : x = \frac{2 π}{3} + πn, x = \frac{5 π}{6} + πn

sin (2 x) = - \frac{3}{2}

일반 솔루션

sin (2 x) = - \frac{3}{2}

sin (x)

주기율표

2 πn

주기:

x 0 \frac{π}{6} \frac{π}{4} \frac{π}{3} \frac{π}{2} \frac{2 π}{3} \frac{3 π}{4} \frac{5 π}{6} sin (x) 0 \frac{1}{2} \frac{2}{2} \frac{3}{2} 1 \frac{3}{2} \frac{2}{2} \frac{1}{2} x π \frac{7 π}{6} \frac{5 π}{4} \frac{4 π}{3} \frac{3 π}{2} \frac{5 π}{3} \frac{7 π}{4} \frac{11 π}{6} sin (x) 0 - \frac{1}{2} - \frac{2}{2} - \frac{3}{2} - 1 - \frac{3}{2} - \frac{2}{2} - \frac{1}{2}

2 x = \frac{4 π}{3} + 2 πn, 2 x = \frac{5 π}{3} + 2 πn

2 x = \frac{4 π}{3} + 2 πn, 2 x = \frac{5 π}{3} + 2 πn

2 x = \frac{4 π}{3} + 2 πn

해결 :

x = \frac{2 π}{3} + πn

2 x = \frac{4 π}{3} + 2 πn

양쪽을 다음으로 나눕니다

2

2 x = \frac{4 π}{3} + 2 πn

양쪽을 다음으로 나눕니다

2

\frac{2 x}{2} = \frac{\frac{4 π}{3}}{2} + \frac{2 πn}{2}

단순화

\frac{2 x}{2} = \frac{\frac{4 π}{3}}{2} + \frac{2 πn}{2}

\frac{2 x}{2}

간소화하다 :

x

\frac{2 x}{2}

숫자를 나눕니다:

\frac{2}{2} = 1

= x

\frac{\frac{4 π}{3}}{2} + \frac{2 πn}{2}

간소화하다 :

\frac{2 π}{3} + πn

\frac{\frac{4 π}{3}}{2} + \frac{2 πn}{2}

\frac{\frac{4 π}{3}}{2} = \frac{2 π}{3}

\frac{\frac{4 π}{3}}{2}

분수 규칙 적용:

\frac{\frac{b}{c}}{a} = \frac{b}{c \cdot a}

= \frac{4 π}{3 \cdot 2}

숫자를 곱하시오:

3 \cdot 2 = 6

= \frac{4 π}{6}

공통 요인 취소:

2

= \frac{2 π}{3}

\frac{2 πn}{2} = πn

\frac{2 πn}{2}

숫자를 나눕니다:

\frac{2}{2} = 1

= πn

= \frac{2 π}{3} + πn

x = \frac{2 π}{3} + πn

x = \frac{2 π}{3} + πn

x = \frac{2 π}{3} + πn

2 x = \frac{5 π}{3} + 2 πn

해결 :

x = \frac{5 π}{6} + πn

2 x = \frac{5 π}{3} + 2 πn

양쪽을 다음으로 나눕니다

2

2 x = \frac{5 π}{3} + 2 πn

양쪽을 다음으로 나눕니다

2

\frac{2 x}{2} = \frac{\frac{5 π}{3}}{2} + \frac{2 πn}{2}

단순화

\frac{2 x}{2} = \frac{\frac{5 π}{3}}{2} + \frac{2 πn}{2}

\frac{2 x}{2}

간소화하다 :

x

\frac{2 x}{2}

숫자를 나눕니다:

\frac{2}{2} = 1

= x

\frac{\frac{5 π}{3}}{2} + \frac{2 πn}{2}

간소화하다 :

\frac{5 π}{6} + πn

\frac{\frac{5 π}{3}}{2} + \frac{2 πn}{2}

\frac{\frac{5 π}{3}}{2} = \frac{5 π}{6}

\frac{\frac{5 π}{3}}{2}

분수 규칙 적용:

\frac{\frac{b}{c}}{a} = \frac{b}{c \cdot a}

= \frac{5 π}{3 \cdot 2}

숫자를 곱하시오:

3 \cdot 2 = 6

= \frac{5 π}{6}

\frac{2 πn}{2} = πn

\frac{2 πn}{2}

숫자를 나눕니다:

\frac{2}{2} = 1

= πn

= \frac{5 π}{6} + πn

x = \frac{5 π}{6} + πn

x = \frac{5 π}{6} + πn

x = \frac{5 π}{6} + πn

x = \frac{2 π}{3} + πn, x = \frac{5 π}{6} + πn

모든 솔루션 결합

x = \frac{π}{6} + πn, x = \frac{π}{3} + πn, x = \frac{2 π}{3} + πn, x = \frac{5 π}{6} + πn

그래프

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