Without using a calculator, determine two angles between 0 and 360 that have a sine ratio of -1/2.

Without using a calculator, determine two angles between 0 and 360 that have a sine ratio of -1/2.
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????????????? "sine raesheo" ????????????? . . . me assume yu want the sine av a angel . . . sine(30 deg)=0.5 . . . & sine(-30 deg)=-0.5 . . .
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