Expression 6: beta equals tangent to the negative 1st power left parenthesis, StartFraction, left parenthesis, "S" minus "s" , right parenthesis StartRoot, 3 , EndRoot Over "s" , EndFraction , right parenthesisβ=tan−1S−s3s
equals=
1515
6
Expression 7:
7
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Center:
center: left parenthesis, 0 , 0 , right parenthesis0,0