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NIELIT EXAM 2017 Day-22 : Engineering Math Quiz - 10

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Question 1

Let A, B, C, D be n × n matrices, each with non-zero determinant. If ABCD=1, then B^-1 is :

Question 2

Consider the function

in the interval [

]. The number and location(s) of the local minima of this function are :

Question 3

Let G be a simple undirected planar graph on 10 vertices with 15 edges. If G is a connected graph, then the number of bounded faces in any embedding of G on the plane is equal to :

Question 4

Which one of the following is NOT necessarily a property of a Group?

Question 5

How many onto (or surjective) functions are there from n-element (n>=2) set to a 2-element set ?

Question 6

The graph than shows basic blocks and their successor relationship is called:

Question 7

Find the value of the determinant of A.

Question 8

Which of the following matrics are not invertible.

Question 9

Let X be an exponential random variable with rate parameter

.Then find variance of X.

Question 10

E[X] = 1 and Var [X] = 2, which one of the following is not correct.

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