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Class 12 Mathematics questions for CBSE

Curriculum-aligned Mathematics questions for Class 12 under CBSE. Shortlist topics, practice at your pace, and make every answer count.

25questions available
Q01•Long Answer•[2 Marks]

During a mathematics workshop, participants analyzed the properties of determinants to solve various problems. They discovered how certain properties of determinants can simplify complex calculations. Discuss at least three properties of determinants and demonstrate their application in solving a specific system of equations using a 3x3 matrix.

Q02•Long Answer•[2 Marks]

A student is studying a system of linear equations represented in matrix form. They encounter a scenario where they need to determine whether the system has a unique solution, no solution, or infinitely many solutions. Describe the methods they can use to analyze the system using determinants, and illustrate this with an example involving a 2x2 matrix.

Q03•Long Answer•[2 Marks]

A software development company is designing a new function to map user inputs to their respective outputs in a web application. They are considering various types of functions such as one-one, onto, and bijective functions. Explain each type of function and discuss how understanding these types can influence the design choices they make in creating user-friendly interfaces.

Q04•Long Answer•[2 Marks]

In a recent project, a team collected data in a rectangular matrix format. After some analysis, they decided to find the transpose of this matrix to understand the data from a different perspective. Describe the process of transposing a matrix and discuss how this operation can be useful in real-world applications such as data manipulation or computer graphics.

Q05•Long Answer•[2 Marks]

A company uses a specific type of matrix to represent their financial data over the last five years. Identify the different types of matrices that could be used in this context, and explain how each type can be applied to analyze financial trends. Additionally, provide examples of situations in which each type of matrix would be most beneficial.

Q06•MCQ•[1 Mark]

In a relation defined on set A, if every element a in A is related to at least one element b in B, what type of relation is this known as?

APartial
BTransitive
CSymmetric
DReflexive
Q07•MCQ•[1 Mark]

If a function f is both one-one and onto, what is it classified as?

AInjective
BConstant
CBijective
DSurjective
Q08•MCQ•[1 Mark]

If a relation is symmetric and aRb, then which of the following must also hold true?

AbRa
BaRb is false
CaRb is true
Da and b are equal
Q09•MCQ•[1 Mark]

Which of the following is a property of a bijective function?

AIt is both injective and surjective
BIt is only surjective
CIt is only injective
DIt can map multiple inputs to one output
Q10•MCQ•[1 Mark]

If a function is defined as f: R -> R where f(x) = x^2, which type of function is this?

ABijective
BNeither
COne-one
DOnto
Q11•MCQ•[1 Mark]

If a relation R on a set A is reflexive, which of the following must hold true?

AFor every a in A, (a, a) is in R
BFor some a in A, (a, a) is in R
CFor no a in A, (a, a) is in R
DOnly for elements in subsets of A
Q12•MCQ•[1 Mark]

In a function f: X -> Y, if every element of Y is mapped from at least one element of X, which type of function is it?

AOne-to-one
BOnto
CNeither
DBijective
Q13•MCQ•[1 Mark]

What is the transpose of the identity matrix?

AIt becomes a symmetric matrix
BIt becomes a diagonal matrix
CIt becomes a zero matrix
DIt remains the same
Q14•MCQ•[1 Mark]

What defines a square matrix?

AEqual number of rows and columns
BMore rows than columns
COnly diagonal elements
DMore columns than rows
Q15•MCQ•[1 Mark]

If matrix A is a 2x2 matrix, what is the result of the operation A + A^T?

AA is an identity matrix
BA is skew-symmetric
CA is symmetric
DA is a diagonal matrix
Q16•MCQ•[1 Mark]

Which type of matrix has all its elements as zero?

ASymmetric matrix
BZero matrix
CDiagonal matrix
DIdentity matrix
Q17•MCQ•[1 Mark]

What is the transpose of the matrix \[ B = \begin{bmatrix} 1 & 0 \ 2 & 3 \end{bmatrix} \]?

A\[ \begin{bmatrix} 0 & 1 \\ 3 & 2 \end{bmatrix} \]
B\[ \begin{bmatrix} 1 & 0 \\ 2 & 3 \end{bmatrix} \]
C\[ \begin{bmatrix} 1 & 3 \\ 0 & 2 \end{bmatrix} \]
D\[ \begin{bmatrix} 1 & 2 \\ 0 & 3 \end{bmatrix} \]
Q18•MCQ•[1 Mark]

Which of the following is a characteristic of a symmetric matrix?

AA is square
BA = A^T
CA + B = A
DA is diagonal
Q19•MCQ•[1 Mark]

If matrix A is transposed, which of the following is true regarding the transpose operation?

AA^T = A
B(A + B)^T = A^T + B
C(AB)^T = A^T B^T
D(A^T)^T = A
Q20•MCQ•[1 Mark]

If A is a 3x3 matrix with an adjoint of 0, what can be inferred about the matrix A?

AA is invertible
BA is a diagonal matrix
CA is singular
DA is an identity matrix
Class 12 Mathematics Questions for CBSE | QPaperLabs