MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Matlab knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If solve does not return any solution, what does it imply? |
| A. | The equation has no definite solution |
| B. | The equation has a solution for a specific interval |
| C. | The equation may be solvable but the function ‘solve’ cannot produce a solution |
| D. | There is no function ‘solve’ |
| Answer» D. There is no function ‘solve’ | |
| 2. |
What happens if dsolve does not return any numerical solution? |
| A. | The equations have no solution |
| B. | The equations have a trivial solution |
| C. | The equations have infinite no. of solutions |
| D. | The equation has to be solve separately |
| Answer» E. | |
| 3. |
Which program can help to solve the following differential equation? |
| A. | syms y(t) a;equn = diff(y,t)==b*y;cnd=y(0)==5;ySol(t)=dsolve(equn,cnd) |
| B. | syms y(t) a;eqn = diff(y,t) == a*y;ySol(t) = dsolve(eqn,(y(0)=5); |
| C. | syms y(t) a;eqn=diff(y,t)=a*y;cond=y(0)==5 sol(t)=dsolve(eqn,cond);d) sym y(t) a; eqn=diff(y,t)==a*y;cond=y(0)==5;sol(eqn,con |
| D. | syms y(t) a;eqn = diff(y,t) == a*y;ySol(t) = dsolve(eqn,(y(0)=5);c) syms y(t) a;eqn=diff(y,t)=a*y;cond=y(0)==5 sol(t)=dsolve(eqn,cond);d) sym y(t) a; eqn=diff(y,t)==a*y;cond=y(0)==5;sol(eqn,cond);View Answer |
| Answer» B. syms y(t) a;eqn = diff(y,t) == a*y;ySol(t) = dsolve(eqn,(y(0)=5); | |
| 4. |
Find the error in the following code? |
| A. | Predicted output is same as present output after math magic |
| B. | solve(a*x2 + b*x + c == 0) |
| C. | vpa(solve(a*x2 – b*x + c == 0)) |
| D. | solve(a*x2 – b*x + c == 0)View Answer |
| Answer» E. | |
| 5. |
What should be the output for the following code? |
| A. | Nan |
| B. | -0.000000000000000000000000117191203927370461282452866337 |
| C. | -1.1719e-25 |
| D. | fzero is not a functionView Answer |
| Answer» B. -0.000000000000000000000000117191203927370461282452866337 | |
| 6. |
An employer has to minimize the number of lines in a program while writing the code for a purpose. If the purpose is to find the root of the following equation, which function is to be used? |
| A. | polyval() |
| B. | solve[] |
| C. | sol[] |
| D. | roots([])View Answer |
| Answer» E. | |
| 7. |
Predicted output is same as present output after math magic$ |
| A. | solve(a*x<sup>2</sup> + b*x + c == 0) |
| B. | vpa(solve(a*x<sup>2</sup> – b*x + c == 0)) |
| C. | solve(a*x<sup>2</sup> – b*x + c == 0) |
| Answer» D. | |
| 8. |
A student has to find the solution of an equation cos(x)=1/2. She has to write the program such that exact values are shown at output. Which of the following codes would help her? |
| A. | syms x;eqn = cos(x) == 1/2;vpa( solve(eqn,x)) |
| B. | syms x;eqn = cos(x) == 1/2;solve(eqn,x) |
| C. | vpa(solve(‘cos(x)=1/2’)) |
| D. | syms x;eqn = cos(x) = 1/2;vpa(solve(eqn,x)) |
| Answer» B. syms x;eqn = cos(x) == 1/2;solve(eqn,x) | |
| 9. |
The solve[] command can do which of the following things? |
| A. | Produce the exact solution |
| B. | Produce a symbolic solution |
| C. | Produces exact roots |
| D. | Produces complex roots |
| Answer» B. Produce a symbolic solution | |
| 10. |
What is the difference between sqrt(10) and sqrt(sym(10))? |
| A. | There is no difference |
| B. | sqrt(sym(10)) is incorrect |
| C. | There is no function as sqrt |
| D. | sqrt(10) returns exact value while sqrt(sym(10)) returns 10<sup>(1/2)</sup> |
| Answer» C. There is no function as sqrt | |
| 11. |
What is the syntax to solve simultaneous equations easily? |
| A. | solve[“equation-1”,”equation-2”]; |
| B. | sol[“equation-1” “equation-2”]; |
| C. | sol[‘equation-1’‘equation-2’]; |
| D. | solve[‘equation-1’,‘equation-2’]; |
| Answer» E. | |