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CUET (UG)
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Mathematics
List of top Mathematics Questions asked in CUET (UG)
A.
[
1
2
3
2
4
5
3
5
6
]
\begin{bmatrix}1& 2& 3 \\[0.3em]2 & 4 & 5 \\[0.3em]3 & 5&6 \\[0.3em] \end{bmatrix}
1
2
3
2
4
5
3
5
6
is a Symmetric matrix.
B.
[
0
0
0
0
0
0
]
\begin{bmatrix}0 &0 &0 \\[0.3em]0& 0&0 \\[0.3em] \end{bmatrix}
[
0
0
0
0
0
0
]
is a Null matrix.
C.
[
1
0
0
0
2
0
0
0
3
]
\begin{bmatrix}1& 0& 0 \\[0.3em]0 & 2 & 0\\[0.3em]0 & 0&3\\[0.3em] \end{bmatrix}
1
0
0
0
2
0
0
0
3
is an Identity matrix.
D.
[
0
1
2
−
1
0
3
−
2
3
0
]
\begin{bmatrix}0& 1&2 \\[0.3em]-1 & 0 & 3 \\[0.3em]-2 & 3&0\\[0.3em] \end{bmatrix}
0
−
1
−
2
1
0
3
2
3
0
is a Skew symmetric matrix.
E.
[
3
0
0
0
3
0
0
0
3
]
\begin{bmatrix}\sqrt{3} &0& 0\\[0.3em]0 & \sqrt{3} & 0 \\[0.3em]0 & 0&\sqrt{3} \\[0.3em] \end{bmatrix}
3
0
0
0
3
0
0
0
3
is a Scalar matrix
Choose the correct answer from the options given below:
CUET (UG) - 2023
CUET (UG)
Mathematics
Types of Matrices
If,
f
(
x
)
=
[
0
x
−
a
x
−
b
x
+
a
o
x
−
c
x
+
b
x
+
c
0
]
f(x) = \begin{bmatrix}0 & x-a & x-b \\[0.3em]x+a&o & x-c \\[0.3em]x+b & x+c & 0\\[0.3em] \end{bmatrix}
f
(
x
)
=
0
x
+
a
x
+
b
x
−
a
o
x
+
c
x
−
b
x
−
c
0
, then
f
(
0
)
f(0)
f
(
0
)
is:
CUET (UG) - 2023
CUET (UG)
Mathematics
Determinant
If, A is a square matrix of order
3
×
3
3 \times 3
3
×
3
such that
A
2
=
A
A^2 = A
A
2
=
A
and I is the unit matrix of order
3
×
3
3 \times 3
3
×
3
, then the value of
(
I
−
A
)
3
+
A
2
+
I
(I-A)^3+A^2+I
(
I
−
A
)
3
+
A
2
+
I
is:
CUET (UG) - 2023
CUET (UG)
Mathematics
Matrices
If the mean of the probability distribution is 5, then the value of k is:
X
2
k
5
P(X)
0.2
0.4
0.6
CUET (UG) - 2023
CUET (UG)
Mathematics
Probability Distribution
Derivative of
2
x
2
2x^2
2
x
2
with respect to
5
x
4
5x^4
5
x
4
is:
CUET (UG) - 2023
CUET (UG)
Mathematics
Derivatives
Which of the following are propositions ?
(A) The sum of four angles of quadrilateral is 180°.
(B) A line segment has two end points.
(C) 7𝑥+3=14
(D) 3 X 9=21
CUET (UG) - 2023
CUET (UG)
Mathematics
Propositional Logic
The equation of the curve whose slope is given by
d
y
d
x
=
4
x
y
\frac{dy}{dx}=\frac{4x}{y}
d
x
d
y
=
y
4
x
, x>0,y>0 and which passes through the point (2, 2) is:
CUET (UG) - 2023
CUET (UG)
Mathematics
Coordinate Geometry
Cost of 6 pens and 9 pencils is ₹126. What is the cost of 8 pens and 12 pencils?
CUET (UG) - 2023
CUET (UG)
Mathematics
Unitary Method
Arun invests an amount of ₹4,000 at the rate of 2% simple interest per annum. For how many years did he invest the amount to double his sum?
CUET (UG) - 2023
CUET (UG)
Mathematics
Simple Interest
A car costing ₹8,50,000 has scrap value of ₹1,25,000. If annual depreciation charge is ₹1,45,000, then useful life of the car is:
CUET (UG) - 2023
CUET (UG)
Mathematics
Compound Interest
If
x
=
1
t
2
x = \frac{1}{t^2}
x
=
t
2
1
and
y
=
1
t
3
y =\frac{1}{t^3}
y
=
t
3
1
, then
d
2
y
d
x
2
\frac{d^2y}{dx^2}
d
x
2
d
2
y
at
t
=
1
t=1
t
=
1
is:
CUET (UG) - 2023
CUET (UG)
Mathematics
Second Order Derivatives
The following data are from a simple random sample: 1, 4, 7
The point estimate of the population standard deviation is:
CUET (UG) - 2023
CUET (UG)
Mathematics
Standard deviation
A coin is tossed 5 times. The probability of getting atleast one head is:
CUET (UG) - 2023
CUET (UG)
Mathematics
Probability
The maximum profit that a company can make if the profit function is given by
P
(
x
)
=
32
+
24
x
−
18
x
2
P(x)=32+24x-18x^2
P
(
x
)
=
32
+
24
x
−
18
x
2
is:
CUET (UG) - 2023
CUET (UG)
Mathematics
Functions
Let A and B be symmetric matrices of same order, then which of the following statement is true?
CUET (UG) - 2023
CUET (UG)
Mathematics
Symmetric and Skew Symmetric Matrices
For x+y=8, the maximum value of xy is:
CUET (UG) - 2023
CUET (UG)
Mathematics
Linear Programmig Problem
For matrix
A
=
[
3
1
7
5
]
A = \begin{bmatrix}3&1\\ 7&5\end{bmatrix}
A
=
[
3
7
1
5
]
, the values of x and y so that
A
2
+
x
I
=
y
A
A^2+xI=yA
A
2
+
x
I
=
y
A
are:
CUET (UG) - 2023
CUET (UG)
Mathematics
Matrices
The region represented by the system of inequalities x, y≥0, y≤8, x + y≤4 is:
CUET (UG) - 2023
CUET (UG)
Mathematics
Inequalities
With reference to time series, match List I with List II
LIST I
LIST II
A
.
Secular movements
I
.
Price increase before Deepavali
B
.
Seasonal variations
II
.
Increase in price of gold during a major war
C
.
Cyclic variations
III
.
Long term trends
D
.
Irregular variations
IV
.
Recurring rise and decline in production
Choose the correct answer from the options given below:
CUET (UG) - 2023
CUET (UG)
Mathematics
Prices Related To An Item Or Buying And Selling
For the LPP Max Z=3x+4y, x+y≤40; x+2y≤ 60, x≥0, y≥0 the solution is:
CUET (UG) - 2023
CUET (UG)
Mathematics
Linear Programmig Problem
If
A
=
[
4
5
2
3
−
1
7
]
A = \begin{bmatrix} 4&5&2\\ 3&-1&7\end{bmatrix}
A
=
[
4
3
5
−
1
2
7
]
, then the sum of the elements of the matrix AA
T
is:
CUET (UG) - 2023
CUET (UG)
Mathematics
Transpose of a Matrix
If
x
3
4
+
y
3
4
=
a
3
4
x^{\frac{3}{4}}+y^{\frac{3}{4}}=a^{\frac{3}{4}}
x
4
3
+
y
4
3
=
a
4
3
(a is a constant) then
d
y
d
x
\frac{dy}{dx}
d
x
d
y
is equal to :
CUET (UG) - 2023
CUET (UG)
Mathematics
Derivatives
For the formula
t
=
μ
1
−
μ
2
S
1
2
n
1
+
S
2
2
n
2
t= \frac{μ_1 - μ_2}{\sqrt {\frac{S_1^2}{n_1}+\frac{S_2^2}{n_2}}}
t
=
n
1
S
1
2
+
n
2
S
2
2
μ
1
−
μ
2
consider of the following statements:
A.
μ
1
μ_1
μ
1
and
μ
2
μ_2
μ
2
are sample mean and population mean respectively.
B.
n
1
n_1
n
1
and
n
2
n_2
n
2
are sample sizes of two samples from same population.
C.
S
1
S_1
S
1
and
S
2
S_2
S
2
are sample means of two samples from same population.
D.
S
1
S_1
S
1
and
S
2
S_2
S
2
are standard error of two samples from same population.
E.
n
1
n_1
n
1
is the sample size and
n
2
n_2
n
2
is the population size.
Choose the correct answer from the options given below:
CUET (UG) - 2023
CUET (UG)
Mathematics
Statistics
Fisher's price index number is:
CUET (UG) - 2023
CUET (UG)
Mathematics
Arithmetic Mean
A random variable X has the following probability distribution
X
0
1
2
3
4
5
6
7
P(X)
0
k
2k
2k
3k
k
2
2k
2
7k
2
+k
then value of E(X) is:
CUET (UG) - 2023
CUET (UG)
Mathematics
Probability Distribution
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