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22^(@)30=(22 1/2)=(45/2)^(@)=45/2xx(pi)/...

`22^(@)30=(22 1/2)=(45/2)^(@)=45/2xx(pi)/180=(pi^(c))/8`

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30^(@)=(pi)/180xx30=(pi^(c))/6

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( 2tan 30 ^(@) )/( 1+tan ^(2) 45^(@) ) =

( 2tan 30 ^(@) )/( 1+tan ^(2) 45^(@) ) =