Expression 4: StartFraction, "B" Subscript, "a" "s" "e" , Baseline Over "R" , EndFraction equals StartFraction, "h" minus "R" Over "R" , EndFractionBaseR=h−RR
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Expression 5: StartFraction, left parenthesis, "B" Subscript, "a" "s" "e" , Baseline plus "R" , right parenthesis cos left parenthesis, 2tan to the negative 1st power StartNestedFraction, "R" NestedOver "B" Subscript, "a" "s" "e" , Baseline minus "R" , EndNestedFraction , right parenthesis Over "B" Subscript, "a" "s" "e" , Baseline sin left parenthesis, 2tan to the negative 1st power StartNestedFraction, "R" NestedOver "B" Subscript, "a" "s" "e" , Baseline minus "R" , EndNestedFraction , right parenthesis , EndFraction tilde 1Base+Rcos2tan−1RBase−RBasesin2tan−1RBase−R~1
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Expression 6:
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Center:
center: left parenthesis, negative 1 half , 0 , right parenthesis−12,0