Answer:
what is your question.. if any problems then I will try to solve if I know.
It has C. Rotational.... 180 degree rotational symmetry
= cos( -x ) * [ - sin( - x ) ] = cosx * sinx ;
cosx * sin x is the right answer !
B
Its because when you rearrange using this formula y=mx+c, where m is slope, if m is negative then that line has a negative slope
