Respuesta :

lukyo
If you're using the app, try seeing this answer through your browser:  https://brainly.com/question/2790456

______________


[tex]\mathsf{sin\!\left(\dfrac{3\pi}{4}\right)}\\\\\\ =\mathsf{sin\!\left(\dfrac{3\cdot 180^\circ}{4}\right)}\\\\\\ =\mathsf{sin(135^\circ)}\\\\ =\mathsf{sin(180^\circ-135^\circ)}[/tex]

[tex]=\mathsf{sin(45^\circ)}\\\\ =\mathsf{\dfrac{\sqrt{2}}{2}}\quad\longleftarrow\quad\textsf{this is the answer.}[/tex]


I hope this helps.=)


Tags:  sine sin common angles trig trigonometry

Otras preguntas