1.

State if the given angles are coterminal.`alpha=185^0,beta=-545^0``alpha=(17pi)/(36),beta(161pi)/(36)`

Answer» (i) `alpha=185^@,beta-545^@`
Hence, `alpha-bet=185^@-(-545^@)=730^@`
Hence, the given angles are not coterminal.
`(ii)a=(17pi)/36,beta=(161pi)/36`
Hence, `beta-alpha=(161pi)/36-(17pi)/36=(144pi)=36=4pi`
Hence, the given angles are coterminal.


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