運算式 4: "A" Subscript, 0 , Baseline equals left parenthesis, cos left parenthesis, "T" , right parenthesis , sin left parenthesis, "T" , right parenthesis , right parenthesisA0=cosT,sinT
4
運算式 5: "B" Subscript, 0 , Baseline equals left parenthesis, cos left parenthesis, 180 plus "T" , right parenthesis , sin left parenthesis, 180 plus "T" , right parenthesis , right parenthesisB0=cos180+T,sin180+T
5
運算式 6: "B" equals left parenthesis, cos left parenthesis, 180 plus "T" , right parenthesis , sin left parenthesis, 180 plus "T" , right parenthesis , right parenthesisB=cos180+T,sin180+T
6
運算式 7: "A" equals left parenthesis, cos left parenthesis, "T" , right parenthesis , sin left parenthesis, "T" , right parenthesis , right parenthesisA=cosT,sinT