Lab Task 1: Plot all the given functions to observe the roots by visualization, fill the table by your visual guess of root. We have plotted one function for you. 1) f(x)=cos(x)1.3x 2) f(x)=xcos(x)2x2+3x1 3) f(x)=2xcos(2x)(x+1)2 Task 1(If more than one root kindly mention all values)