True or False

20. TorF: 21. T or F: 22. Tor F: 23. TorF: isnumeric('abc'+2) returns false. isnumeric(Inf-Inf) returns true. If both a and b have the same size, then a*b can be used If a -[2,4,6] and b-[1,3,5], then a*b' returns a scalar. or F: If two matrices a and b have the same size, then a. b can be used. 25. T or F: If a 26. TorF: To draw multiple figures, statement subplot(4, 2, 7) can be used. 27. Tor F: A logical variable in MATLAB has two possible values only. 28. Tor F: Logical values are stored in a single byte of memory =11, 2; 2, 3], then a"a is the same as a,"a