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Mathematics, 12.07.2019 03:30 danniuhrig

If cos 0=sin b then which of the following must be true? 0+b=180? 0-b=90? b-0=90? b=90-0?

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If cos 0=sin b then which of the following must be true? 0+b=180? 0-b=90? b-0=90? b=90-0?...
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