Mathematical Functions and Expressions set 15

Que.What is the output of the following code?
cumsum(1,2,-1)

a. 1 3 2
b. 2
c. Error due to input
d. Error due to syntax
Que.The sum function will return a NaN if any of the element in the input vector is NaN.
a. True
b. False
c. May be True or False
d. Can’t say
Que.The result of cumsum([1,2,3]) and sum([3,3]) are ____________
a. Same
b. Different
c. Absolute numbers
d. Signed numbers
Que.What is the output of the following code?
syms a,k; symsum(a^k, 1, Inf)

a. Error
b. -1/(a-1) -1
c. -1/(a-1)
d. Inf
Que.What is the output of the following code shown?
syms a k; symsum(a^k, 0, Inf)

a. 1/1-a
b. Inf
c. Error due to Inf
d. Error due to an unmentioned value of a
Que.What is the output of the following code?
q=0;syms p,q

a. q=0
b. pq=0
c. pq
d. Error
Que.What is the default variable while evaluating a transfer function?
a. s
b. p
c. z
d. Any
Que.What is the default variable while evaluating a Laplace transform?
a. s
b. t
c. Any
d. l
Que.The output of the following code is
laplace(exp(-3*t),p)

a. Error due to p
b. 1/(s+3)
c. 1/(p+3)
d. Error due to t
Que.The output of the following code is
solve(‘w+z=0’)

a. -z
b. -w
c. Error
d. No such fuction