Sin ½x = sin 20°
dimohon jawaban nyaa :)
dimohon jawaban nyaa :)
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Jawaban:
sin½x =sin 20°
* ½x=20°+k. 360°
x=40°+k. 720°
k=0 ,x=40°
k=1 ,x = 760°
dlll
*½x=(180°-20°)+k.360°
½x= 160°+k. 360°
x= 320°+k. 720
k=0 ,x=320°
k=1 ,x= 1040°
dlll