PYQ Vault

Day 246: CBSE Class 12 Maths

5 questions. Try each one first, then open its answer.

  1. Question 1

    Linear Programming. Asked once: 2023 (same type asked 4 times)

    16
    Which of the following points satisfies both the inequations 2x+y≤102x + y \le 10 and x+2y≥8x + 2y \ge 8 ?

    Tap an option to check your answer.

  2. Question 2

    Matrices. Asked once: 2023 (same type asked 4 times)

    15
    If A is a 2×32 \times 3 matrix such that ABAB and AB′AB' both are defined, then order of the matrix B is

    Tap an option to check your answer.

  3. Question 3

    Matrices. Asked once: 2025 (same type asked 4 times)

    4
    If A and B are square matrices of same order, then (ABT−BAT)(AB^T - BA^T) is a

    Tap an option to check your answer.

  4. Question 4

    Matrices. Asked once: 2023 (same type asked 4 times)

    1
    If for a square matrix A, A2−3A+I=OA^2 - 3A + I = O and A−1=xA+yIA^{-1} = xA + yI, then the value of x + y is :

    Tap an option to check your answer.

  5. Question 5

    Vector Algebra. Asked once: 2023 (same type asked 4 times)

    13
    If θ\theta is the angle between two vectors a⃗\vec{a} and b⃗\vec{b}, then a⃗⋅b⃗≥0\vec{a} \cdot \vec{b} \ge 0 only when :

    Tap an option to check your answer.