Jawabanmu

2014-05-09T13:34:51+07:00
A(a,b)--> R(-90°,(x,y))
=A(a,b)--> T(-x,-y) --> R(270°,O)--> T(x,y)
=A(2,-3)--> T(1,-1) A'(3,-4)--> R(270°,O) A''(-4,-3) --> T(-1,1) A'''(-5,-2)
jadi A(2,-3)--> R(-90°,(-1,1)) A'(-5,-2)