Which MATLAB statement will square the elements of a vector x? x+x x^2 x*x x,^2 Which is not a predefined constant in MATLAB? NaN Inf i phi Which MATLAB statement calculates the height of a ball at each instance contained in t? The position of the ball is by the function y(t) = 10 + 2.3*t+ 4.9*t. y_t = 10 + 2.3.*t + 4.9*t.^2 y_t = 10 + 2.3*t + 4.9*t^2 y_t 10 + 2.3.*t + 49*t^2 y_t 10 + 2.3*t + 49*t*t In MATLAB, vectors can be entered as either rows or columns What character separaties the columns in a column vector? period(.) colon(;) comma(,) semicolon(;) In MATLAB, the operator for exponents is ^