7. (a)Define some frequently occuring function like [x],[x] etc . And also draw their graphs. (b) Draw the graphs of the real functions (i)f(x)=[x 1] (ii)f(x)=x-10
in given figure if l parallel to m and a quadrilateral ABCD c d e f and g f g h are the parallel then prove that a r parallelogram ABCD equals to a parallelogram