+0

# sohcahtoa

0
196
2

-sinx=12/13

Guest Feb 16, 2017

#2
+19603
+10

-sinx=12/13

$$\begin{array}{|rcll|} \hline -\sin(x) &=& \frac{12}{13} \\ \sin(x) &=& -\frac{12}{13} \\ x_1 &=& \arcsin(-\frac{12}{13}) + z\cdot 360^{\circ} \quad & | \quad z \in Z \\ \mathbf{x_1} &\mathbf{=}& \mathbf{-67.3801350520^{\circ} + z\cdot 360^{\circ}} \\\\ \sin(x)=\sin(180^{\circ}-x) &=& -\frac{12}{13} \\ 180^{\circ}-x_2 &=& \arcsin(-\frac{12}{13}) + z\cdot 360^{\circ} \quad & | \quad z \in Z \\ x_2 &=& 180^{\circ}- \arcsin(-\frac{12}{13}) + z\cdot 360^{\circ} \\ x_2 &=& 180^{\circ}- (-67.3801350520^{\circ}) + z\cdot 360^{\circ} \\ \mathbf{x_2} &\mathbf{=}&\mathbf{ 247.380135052 + z\cdot 360^{\circ}} \\ \hline \end{array}$$

heureka  Feb 16, 2017
#1
+7348
0

-sinx=12/13

$$-sin \ x=\frac{12}{13}$$

Enter DEG at the computer.

$$sin \ x=-\frac{12}{13}$$

$$x= arcsin -0.\overline{923076}$$

$$x=-1.1760$$

$$x= arcsin -0.\overline{923076}$$

$$x=-67.380 \ GRD$$

!

asinus  Feb 16, 2017
#2
+19603
+10

-sinx=12/13

$$\begin{array}{|rcll|} \hline -\sin(x) &=& \frac{12}{13} \\ \sin(x) &=& -\frac{12}{13} \\ x_1 &=& \arcsin(-\frac{12}{13}) + z\cdot 360^{\circ} \quad & | \quad z \in Z \\ \mathbf{x_1} &\mathbf{=}& \mathbf{-67.3801350520^{\circ} + z\cdot 360^{\circ}} \\\\ \sin(x)=\sin(180^{\circ}-x) &=& -\frac{12}{13} \\ 180^{\circ}-x_2 &=& \arcsin(-\frac{12}{13}) + z\cdot 360^{\circ} \quad & | \quad z \in Z \\ x_2 &=& 180^{\circ}- \arcsin(-\frac{12}{13}) + z\cdot 360^{\circ} \\ x_2 &=& 180^{\circ}- (-67.3801350520^{\circ}) + z\cdot 360^{\circ} \\ \mathbf{x_2} &\mathbf{=}&\mathbf{ 247.380135052 + z\cdot 360^{\circ}} \\ \hline \end{array}$$

heureka  Feb 16, 2017