ja

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

人気のある三角関数 >

2sin(2x+15)= 1/2

解

2 sin (2 x + 15) = \frac{1}{2}

解

x = πn - \frac{15}{2} + \frac{0.25268 \dots}{2}, x = πn + \frac{π}{2} - \frac{15}{2} - \frac{0.25268 \dots}{2}

+1

度

x = - 422.47959 \dots^{\circ} + 18 0^{\circ} n, x = - 346.95710 \dots^{\circ} + 18 0^{\circ} n

解答ステップ

2 sin (2 x + 15) = \frac{1}{2}

以下で両辺を割る

2

2 sin (2 x + 15) = \frac{1}{2}

以下で両辺を割る

2

\frac{2 sin ( 2 x + 15 )}{2} = \frac{\frac{1}{2}}{2}

簡素化

\frac{2 sin ( 2 x + 15 )}{2} = \frac{\frac{1}{2}}{2}

簡素化

\frac{2 sin ( 2 x + 15 )}{2} : sin (2 x + 15)

\frac{2 sin ( 2 x + 15 )}{2}

数を割る:

\frac{2}{2} = 1

= sin (2 x + 15)

簡素化

\frac{\frac{1}{2}}{2} : \frac{1}{4}

\frac{\frac{1}{2}}{2}

分数の規則を適用する:

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

= \frac{1}{2 \cdot 2}

数を乗じる:

2 \cdot 2 = 4

= \frac{1}{4}

sin (2 x + 15) = \frac{1}{4}

sin (2 x + 15) = \frac{1}{4}

sin (2 x + 15) = \frac{1}{4}

三角関数の逆数プロパティを適用する

sin (2 x + 15) = \frac{1}{4}

以下の一般解

sin (2 x + 15) = \frac{1}{4}

sin (x) = a \Rightarrow x = arcsin (a) + 2 πn, x = π - arcsin (a) + 2 πn

2 x + 15 = arcsin (\frac{1}{4}) + 2 πn, 2 x + 15 = π - arcsin (\frac{1}{4}) + 2 πn

2 x + 15 = arcsin (\frac{1}{4}) + 2 πn, 2 x + 15 = π - arcsin (\frac{1}{4}) + 2 πn

解く

2 x + 15 = arcsin (\frac{1}{4}) + 2 πn : x = πn - \frac{15}{2} + \frac{arcsin ( \frac{1}{4} )}{2}

2 x + 15 = arcsin (\frac{1}{4}) + 2 πn

15

を右側に移動します

2 x + 15 = arcsin (\frac{1}{4}) + 2 πn

両辺から

15

を引く

2 x + 15 - 15 = arcsin (\frac{1}{4}) + 2 πn - 15

簡素化

2 x = arcsin (\frac{1}{4}) + 2 πn - 15

2 x = arcsin (\frac{1}{4}) + 2 πn - 15

以下で両辺を割る

2

2 x = arcsin (\frac{1}{4}) + 2 πn - 15

以下で両辺を割る

2

\frac{2 x}{2} = \frac{arcsin ( \frac{1}{4} )}{2} + \frac{2 πn}{2} - \frac{15}{2}

簡素化

\frac{2 x}{2} = \frac{arcsin ( \frac{1}{4} )}{2} + \frac{2 πn}{2} - \frac{15}{2}

簡素化

\frac{2 x}{2} : x

\frac{2 x}{2}

数を割る:

\frac{2}{2} = 1

= x

簡素化

\frac{arcsin ( \frac{1}{4} )}{2} + \frac{2 πn}{2} - \frac{15}{2} : πn - \frac{15}{2} + \frac{arcsin ( \frac{1}{4} )}{2}

\frac{arcsin ( \frac{1}{4} )}{2} + \frac{2 πn}{2} - \frac{15}{2}

条件のようなグループ

= - \frac{15}{2} + \frac{2 πn}{2} + \frac{arcsin ( \frac{1}{4} )}{2}

数を割る:

\frac{2}{2} = 1

= - \frac{15}{2} + πn + \frac{arcsin ( \frac{1}{4} )}{2}

条件のようなグループ

= πn - \frac{15}{2} + \frac{arcsin ( \frac{1}{4} )}{2}

x = πn - \frac{15}{2} + \frac{arcsin ( \frac{1}{4} )}{2}

x = πn - \frac{15}{2} + \frac{arcsin ( \frac{1}{4} )}{2}

x = πn - \frac{15}{2} + \frac{arcsin ( \frac{1}{4} )}{2}

解く

2 x + 15 = π - arcsin (\frac{1}{4}) + 2 πn : x = πn + \frac{π}{2} - \frac{15}{2} - \frac{arcsin ( \frac{1}{4} )}{2}

2 x + 15 = π - arcsin (\frac{1}{4}) + 2 πn

15

を右側に移動します

2 x + 15 = π - arcsin (\frac{1}{4}) + 2 πn

両辺から

15

を引く

2 x + 15 - 15 = π - arcsin (\frac{1}{4}) + 2 πn - 15

簡素化

2 x = π - arcsin (\frac{1}{4}) + 2 πn - 15

2 x = π - arcsin (\frac{1}{4}) + 2 πn - 15

以下で両辺を割る

2

2 x = π - arcsin (\frac{1}{4}) + 2 πn - 15

以下で両辺を割る

2

\frac{2 x}{2} = \frac{π}{2} - \frac{arcsin ( \frac{1}{4} )}{2} + \frac{2 πn}{2} - \frac{15}{2}

簡素化

\frac{2 x}{2} = \frac{π}{2} - \frac{arcsin ( \frac{1}{4} )}{2} + \frac{2 πn}{2} - \frac{15}{2}

簡素化

\frac{2 x}{2} : x

\frac{2 x}{2}

数を割る:

\frac{2}{2} = 1

= x

簡素化

\frac{π}{2} - \frac{arcsin ( \frac{1}{4} )}{2} + \frac{2 πn}{2} - \frac{15}{2} : πn + \frac{π}{2} - \frac{15}{2} - \frac{arcsin ( \frac{1}{4} )}{2}

\frac{π}{2} - \frac{arcsin ( \frac{1}{4} )}{2} + \frac{2 πn}{2} - \frac{15}{2}

条件のようなグループ

= \frac{π}{2} - \frac{15}{2} + \frac{2 πn}{2} - \frac{arcsin ( \frac{1}{4} )}{2}

数を割る:

\frac{2}{2} = 1

= \frac{π}{2} - \frac{15}{2} + πn - \frac{arcsin ( \frac{1}{4} )}{2}

条件のようなグループ

= πn + \frac{π}{2} - \frac{15}{2} - \frac{arcsin ( \frac{1}{4} )}{2}

x = πn + \frac{π}{2} - \frac{15}{2} - \frac{arcsin ( \frac{1}{4} )}{2}

x = πn + \frac{π}{2} - \frac{15}{2} - \frac{arcsin ( \frac{1}{4} )}{2}

x = πn + \frac{π}{2} - \frac{15}{2} - \frac{arcsin ( \frac{1}{4} )}{2}

x = πn - \frac{15}{2} + \frac{arcsin ( \frac{1}{4} )}{2}, x = πn + \frac{π}{2} - \frac{15}{2} - \frac{arcsin ( \frac{1}{4} )}{2}

10進法形式で解を証明する

x = πn - \frac{15}{2} + \frac{0.25268 \dots}{2}, x = πn + \frac{π}{2} - \frac{15}{2} - \frac{0.25268 \dots}{2}

グラフ

人気の例

sin^2(x)-2cos^4(x)=0

sin^{2} (x) - 2 cos^{4} (x) = 0

2cos^2(θ)-1=sec(θ)

2 cos^{2} (θ) - 1 = sec (θ)

1/(sin(x))-sin(x)=sin(x)

\frac{1}{sin ( x )} - sin (x) = sin (x)

4 cos^{2} (x) = 0

sin(2x)=(2*10*1500000)/(11000000)

sin (2 x) = \frac{2 \cdot 10 \cdot 1500000}{11000000}