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Choose one angle and find three negative coterminal angles to that angle

Choose one angle and find three negative coterminal angles to that angle-example-1

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Let us take the angle to be 30 degrees. So three positive co terminal angles are:


\begin{gathered} 30+360=390 \\ 30+720=750 \\ 30+1080=1110 \end{gathered}

Three negative co terminal angles are:


\begin{gathered} 30-360=-330 \\ 30-720=-690 \\ 30-1080=-1050 \end{gathered}

Therefore the positive angles co terminal to 30 are 390,750 and 1110 degrees and the negative angles are -330,-690 and -1050 respectively.

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