Mathematical Functions and Expressions set 6

Que.To check the rank of a non-singular square matrix, we have to use ___________
a. not required
b. rankm()
c. rankmatr()
d. rank()
Que.A student aims to use Cramer’s rule to find a solution for a homogeneous system. But while finding the solution, he observes that he is getting infinity as a solution. The code isp=X.\CX is the matrix created by replacing a column with constant co-efficients in the equation.C is the co-efficient matrixP is one of the variables in the systemIs this a proper justification?
a. Yes
b. No
c. Maybe
d. It is not possible to find solutions in MATLAB
Que.Which rule does MATLAB use while differentiating a set of functions?
a. u-v rule
b. by parts
c. no pre-defined rule
d. not possible
Que.There is no difference between a difference equation and a differential equation.
a. True
b. False
c. May be True or False
d. Can’t say
Que.For the existence of the n
Que.What is the data type of y?
y=diff(x²*cos(x) + 2*x*sin(x))

a. Symbolic
b. Double
c. Array
d. Symbolic Array
Que.The output for diff(p²,q) is _______
a. 0
b. 2*p
c. 2 dp/dq
d. Error
Que.What does the following code do?
syms m,y,x,c;

a. Calculate m
b. Calculate slope
c. Error
d. Calculate divergence
Que.What is the nature of ode45 solver?
a. 2nd ordered R-K solver
b. 4th ordered R-K solver
c. 1st order R-K solver
d. Adams solver
Que.Ordinary differential equations having initial values ____________
a. Can be solved
b. Cannot be solved
c. Can be modelled
d. Has a trivial solution
Que.The current characteristics of RC networks are better analyzed by Laplace than differentiation methods.
a. True
b. False
c. May be True or False
d. Can’t say