How do t out a home in in A Comment c Commons D a Comment 18.Which of the following is the consent was to Children A. 1.23 (1,2,3,4) a. a, 3,4 (1,2,2,4} (1) 4) 19 Which one of the following is word to molve an andinary starts ematica? A. Solve B. Nsolve C. Disolve D. Prowite B. Decine 20.Which function computer the norm of in Mathematica? A. VectorNorm B. Sire C. Longth D. Magnitude E. Norm 21 What does MATLAB stands for? A. Mather matical Laboratory B. Matrix Almorithm Tool C. Matrix Laboratory D Mathematica Analvsis Tool E. All 22 What is the default variable in MAT LAB that stores the result of the last calcul A. last B. result C. ans D. sol E. var 23. Which operator is used for element wise multiplication in MAT LAB? A. B star star C. x D. a E. All 24 What is the use of abs function in MATL AB? It returns A. power of a number B. norm of a vector C magnitude of a number D.square of a number E.B and C 25. How do you enter the vector o v=(} 1 2 -5 ) into MAT AB? A e=1 B. v=[1,2,-5]' C. v=(1;2;-5) D. v=(1;2;-5)' E.A and ly 26. Which command is used to plot a 3D surface in MATLAB? A.plot3() B surf( ) C. mesh() D contour() E 27. How do you represent the polynomial function p(x)=x^4-2 A. p=[1,0,-2,6,-7] B p=(-7,6,-2,0,1) D. p=[-7,6,-2,1] E. All

Let's go through each question and provide the correct answers:

18. Which of the following is the correct way to define a set?
A. {1, 2, 3, 4}
B. (1, 2, 3, 4)
C. a, 3, 4
D. {1, 2, 2, 4}

Answer: A. {1, 2, 3, 4}

19. Which one of the following is an ordinary function in Mathematica?
A. Solve
B. Power
C. Deliver
D. Doom

Answer: B. Power

20. Which function computes the norm of a vector in Mathematica?
A. Vector Norm
B. Size
C. Length
D. Magnitude
E. Norm

Answer: E. Norm

21. What does MATLAB stand for?
A. Mathematical Laboratory
B. Matrix Algorithm Tool
C. Matrix Laboratory
D. Mathematica Analysis Tool
E. All

Answer: A. Mathematical Laboratory

22. What is the default variable in MATLAB that stores the result of the last calculation?
A. last
B. result
C. ans
D. sol
E. var

Answer: C. ans

23. Which operator is used for element-wise multiplication in MATLAB?
A..
B. **
C. *
D. *
E. All

Answer: A..

24. What is the use of the abs function in MATLAB? It returns:
A. power of a number
B. norm of a vector
C. magnitude of a number
D. square of a number
E. B and C

Answer: C. magnitude of a number

25. How do you enter the vector v = (1, 2, -5) into MATLAB?
A. v = 1
B. v = [1, 2, -5]'
C. v = (1; 2; -5)
D. v = (1; 2; -5)'

Answer: C. v = (1; 2; -5)

26. Which command is used to plot a 3D surface in MATLAB?
A. plot3()
B. surf()
C. mesh()
D. contour()

Answer: B. surf()

27. How do you represent the polynomial function p(x) = x^4 - 2 in MATLAB?
A. p = [1, 0, -2, 6, -7]
B. p = [-7, 6, -2, 0, 1]
C. p = [-7, 6, -2, 1]
D. p = [1, 0, -2, 6, -7]

Answer: A. p = [1, 0, -2, 6, -7]