NDNgiver101
NDNgiver101
03-02-2017
Mathematics
contestada
sin(3pi over 4) = _____
Respuesta :
lukyo
lukyo
03-02-2017
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______________
[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
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