Expression 4: "B" equals cosine to the negative 1st power left parenthesis, StartFraction, 3 squared plus 7 squared minus "s" squared Over 2 times 3 times 7 , EndFraction , right parenthesisB=cos−132+72−s22·3·7
equals=
148.6 3 3 0 2 2 2 2 5148.633022225
4
Expression 5: "C" equals cosine to the negative 1st power left parenthesis, StartFraction, 7 squared plus 11 squared minus "s" squared Over 2 times 7 times 11 , EndFraction , right parenthesisC=cos−172+112−s22·7·11
equals=
60.3 6 9 5 2 3 8 0 1 360.3695238013
5
Expression 6:
6
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Center:
center: left parenthesis, 0 , 0 , right parenthesis0,0