Expression 15: "D" Subscript, 1 , Baseline equals "B" Subscript, 1 , Baseline plus 7cosine left parenthesis, 60 plus tan to the negative 1st power StartFraction, "C" Subscript, 1 , Baseline minus "B" Subscript, 1 , Baseline Over "B" Subscript, 2 , Baseline , EndFraction minus 90 , right parenthesisD1=B1+7cos60+tan−1C1−B1B2−90
equals=
44
15
Expression 16: "D" Subscript, 2 , Baseline equals "B" Subscript, 2 , Baseline plus 7sine left parenthesis, 60 plus tan to the negative 1st power StartFraction, "C" Subscript, 1 , Baseline minus "B" Subscript, 1 , Baseline Over "B" Subscript, 2 , Baseline , EndFraction minus 90 , right parenthesisD2=B2+7sin60+tan−1C1−B1B2−90