he function y is defined as space space y equals open curly brackets table attributes columnalign left end attributes row cell table row 0 cell text for end text x less than 0 end cell row cell fraction numerator 2 left parenthesis x plus 1 right parenthesis cos left parenthesis 3 x right parenthesis over denominator x squared plus 1 end fraction end cell cell text for end text 0 less or equal than x less than 0.9 end cell end table end cell row cell table row cell fraction numerator 3 x e to the power of negative 0.2 x end exponent over denominator x squared plus 1 end fraction end cell cell text for end text x greater or equal than 0.9 end cell end table end cell end table close Using a for loop or otherwise, (a) Determine the values of y in a vector called z for x values from -2 to 2 in steps of 0.2. Display the values of vector z. (b) Determine and display the sum of values of the vector z.