表达式6: "D" Subscript, 2 , Baseline equals left parenthesis, "d" times sin left parenthesis, StartFraction, pi Over 4 , EndFraction , right parenthesis , negative "d" times sin left parenthesis, StartFraction, pi Over 4 , EndFraction , right parenthesis , negative "d" times sin left parenthesis, StartFraction, pi Over 4 , EndFraction , right parenthesis , right parenthesis equals left parenthesis, 0.7 6 3 6 7 5 3 2 3 6 8 1 , negative 0.7 6 3 6 7 5 3 2 3 6 8 1 , negative 0.7 6 3 6 7 5 3 2 3 6 8 1 , right parenthesis 有图表。D2=d·sinπ4,−d·sinπ4,−d·sinπ4
表达式7: vector left parenthesis, "C" Subscript, 1 , Baseline , "D" Subscript, 2 , Baseline , right parenthesis 有图表。vectorC1,D2
7
表达式8: "D" Subscript, 3 , Baseline equals left parenthesis, negative "d" times sin left parenthesis, StartFraction, pi Over 4 , EndFraction , right parenthesis , "d" times sin left parenthesis, StartFraction, pi Over 4 , EndFraction , right parenthesis , negative "d" times sin left parenthesis, StartFraction, pi Over 4 , EndFraction , right parenthesis , right parenthesis equals left parenthesis, negative 0.7 6 3 6 7 5 3 2 3 6 8 1 , 0.7 6 3 6 7 5 3 2 3 6 8 1 , negative 0.7 6 3 6 7 5 3 2 3 6 8 1 , right parenthesis 有图表。D3=−d·sinπ4,d·sinπ4,−d·sinπ4
表达式9: vector left parenthesis, "C" Subscript, 1 , Baseline , "D" Subscript, 3 , Baseline , right parenthesis 有图表。vectorC1,D3
9
表达式10: "D" Subscript, 4 , Baseline equals left parenthesis, negative "d" times sin left parenthesis, StartFraction, pi Over 4 , EndFraction , right parenthesis , negative "d" times sin left parenthesis, StartFraction, pi Over 4 , EndFraction , right parenthesis , "d" times sin left parenthesis, StartFraction, pi Over 4 , EndFraction , right parenthesis , right parenthesis equals left parenthesis, negative 0.7 6 3 6 7 5 3 2 3 6 8 1 , negative 0.7 6 3 6 7 5 3 2 3 6 8 1 , 0.7 6 3 6 7 5 3 2 3 6 8 1 , right parenthesis 有图表。D4=−d·sinπ4,−d·sinπ4,d·sinπ4
