MTH100 Midterm Past Solved MCQs Set 2

d) (-1.5,-1.5)

Let z i and z i be two complex numbers, then which of the following is

the value of z z

a) 22 14i b) 12 10i c) 20i d) 14 22i e) Ans bbb Q

Let z i and z i be two complex numbers, then which of the following is

the value of z z

a) 7 12i b) 7 12i c) 10 27i d) 18 15i e) Ans bbbb Q

What is roster method to show the set

x · Z · x · x · A

a)

,2 · ,0 · ,1 · ,2 · ,3 · A

b) ,1 2  A

c)

,1 · ,0 · ,1 · ,2 · ,3 · A

d)

,2 · ,1 · ,2 · ,3 · A

e) bbb

Q

Q5. 45235452365845125… is a/an

1. rational number
2. irrational number
3. integer
4. natural number

e) bbbb Q e) ddd Q Which of the following is the common ratio ‘r’ of an geometric sequence 5, 10, 20, 40,

a) -5

b)

c) 2 d) 5 e) ccccc Q

If f x x g(x)= x -1 then f g x 

a) 2x b) 2x -1 c) 2x +1 d) 2x -1 e) bbb Q

For b b ac x a , there will be exactly one real root if

a) b ac

b) b ac

c) b ac

d) b ac e) cccc

Q If A is a matrix whose determinant is zero then its inverse ...................

a) will be zero b) cannot be determined c) will be negative d) will be positive

Q Which of the following is true for the list 2 + 4 + 6 + 8 + 10 ? a) This is an arithmetic sequence. b) This is a geometric sequence. c) This is an arithmetic series. d) This is a geometric series. e) cccc

Q A Square matrix with ones on the diagonal and zeros elsewhere is called an .....ddd.... matrix a) rectangular b) adjoint c) determinant d) identity

Q If the order does matter in a set of objects, it is a _______. a) sequence b) combination c) permutation d) sample e) cccc

Q The Minor of an element in a third-order determinant is a ....bb....... determinant obtained by deleting the row and column that contains the element.

a) third order b) second order c) fourth order d) fifth order

Q

Consider A

be a scalar matrix then which of the following is the dimension of the matrix A ?ddd

a) 3 x 2 b) 2 x 1 c) 2 x 2 d) 2 x 3 Q Which of these equations has two roots?

a) Quadratic b) Linear c) Cubic d) None of these e) aaa