What is the answer of the following input DS (2.5 Points) >> syms X Y >> int (xy^2, y,0,3 ) ans = Unrecognized function or variable xy 17 What is the output of this code DS (3 Points) >> symsum (k^2, 1,5 ) ans Write the letter of the correct answer (2.5 Points) Which of the following expressions generates an evenly spaced vector x containing 15 values between 4 and 20. a) X-linspace(20,15,4) c) X=linspace(4,20,15) b)x=4:15:20 d) x=linspacel 15.4.20) Enter your answer 11 Write the letter of the correct answer DS (2.5 Points) Which of the following expression generates the matrix shown below 2.7 1.8 2 9 10 20 30 40 A- 5 7.5 9 4.8 6.2 1 2 3 a) A = [2.7 1.8 2 9; 10 20 30 40;5 7.5 9 4.8: 6.2 1 2 3] b) A = [2.7, 1.8, 2,9; 10, 20, 30, 40; 5,7.5, 9, 4.8; 6.2, 1, 2.31 c) A = [2.7: 1.8; 2; 9; 10; 20; 30; 40; 5; 7.5:9; 4.8; 6.2; 1:2; 3] 12.7: 1.8: 2:9.10:20: 30:40,5:7.5:9:4.8.6.2: 1:2:31 d A= b Write the letter of the correct answer (2.5 Points) Consider the following MATLAB program: [12: y - [34): 2 - {x' ty: yll'; What is the value of z after this program executes? 3 A. B. C. D. 3 3 4 B Write the letter of the correct answer D (3 Points) Consider the following two-dimensional MATLAB array, stored in the variable A: 1 1 3 6 9 36 27 216 How can we index and retrieve the value 36 from this array? A. AC 2,1) C. AC 2,3) B. AC 3,2) D. AC 2,1) 00 Write the letter of the correct answer 9 (3 Points) y! - - linspace( -1,1,101 ); exp(); y2 - tan(x): y3 - rand 1. numel(x)); How would you successfully plot all three of these data series as points? (Assume any given plot format strings are valid.) C. hold on A. plot( x, y, 'r... y2, '8', y3,'b.' ); plot(x, yi); plot( x, y2); B. plot( x, yi, 'r.', x,y2, '8', *.y3, 'b.' ); plot(x, y3 ); D. plot( x,y, x,y2, x,y3 );