Expression 4: alpha equals tangent to the negative 1st power left parenthesis, StartFraction, 2 StartRoot, 3 , EndRoot Over 8 , EndFraction , right parenthesisα=tan−1238
equals=
23.4 1 3 2 2 4 4 4 6 423.4132244464
4
Expression 5:
5
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Center:
center: left parenthesis, 0 , 0 , right parenthesis0,0