CUET · MATHS · PYQ PAPER 2025
Consider the differential equation \(\frac{d y}{d x}+y \tan x=\sec x\), then which of the following statements are correct?
(A) It is homogeneous
(B) It has \(\sec x\) as its integrating factor
(C) Its general solution is \(y \sec x=\tan x+c\), where \(c\) is an arbitrary constant.
(D) Its degree is not defined
Choose the correct answer from the options given below :
- A (A) and (D) only
- B (B) and (C) only
- C (C) and (D) only
- D (B), (C) and (D) only
Answer & Solution
Correct Answer
(B) (B) and (C) only
Step-by-step Solution
Detailed explanation
\( P(x) = \tan x \) \( \text{IF} = e^{\int \tan x dx} \) \( \text{IF} = e^{\ln|\sec x|} = \sec x \) \( y \cdot \text{IF} = \int Q(x) \cdot \text{IF} dx + c \) \( y \sec x = \int \sec x \cdot \sec x dx + c \) \( y \sec x = \int \sec^2 x dx + c \) \( y \sec x = \tan x + c \) (B)…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from MATHS
- The value of \(c\) for which \(f(x)=x(x-3)^2, 0 \leq x \leq 3\), satisfies Rolle's theorem is:CUET 2023 Hard
- Consider the LPP: Max \(Z = 5x + 3y\) subject to \(3x + 5y ≤ 15, 5x + 2y ≤ 10 x ≥ 0, y ≥ 0\)
match List - I with List - II
Choose the correct answert from the option given below :List-I List-II (A) Objective function (I) \(3x + 5y ≥ 15\) (B) One constraint (II) \(x, y ≥ 0\) (C) Non-negative restrictions (III) \(Z = 5x + 3y\) (D) Point (1, 2) does not lie in the region (IV) \(3x + 5y ≤ 15\) CUET 2025 Hard - If \(A\) is an invertible matrix, then which of the following statement(s) is/are TRUE?
(A) \(\left|A^{-1}\right|=|A|\)
(B) \(\left(A^{-1}\right)^{-1}=A\)
(C) \(A^{-1}=\frac{\operatorname{adj} A}{|A|}\)
(D) \(\left(A^T\right)^{-1}=\left(A^{-1}\right)^T\)
Choose the correct answer from the options given below :CUET 2025 Medium - The effective rate of return equivalent to a nominal rate of 12% per annum compounded quarterly is:
[Given that \((1.03)^4=1.1255\) ]CUET 2025 Medium - If \(f(x)=|2 x+5|\), then \(f(x)\) is :CUET 2023 Hard
- In an LPP, the feasible region represented by the set off constraints \(2 x+3 y \leq 18, x+y \leq 10, x \geq 0, y \geq 0\) is
CUET 2025 Hard
More PYQs from CUET
- Out of the given statement, choose the correct statement.
(A) The direction ratios of the vector \(\vec{a}=3 \hat{i}-\hat{j}+4 \hat{k}\) is \(3,-1,4\).
(B) If \(\theta\) is the angle between two vectors \(\vec{a}\) and \(\vec{b}\), then their cross product is given as \(\vec{a} \times \vec{b}=|\vec{a}||\vec{b}| \cos \theta\).
(C) The unit vector in the direction of vector \(\vec{a}=\hat{i}+2 \hat{j}-2 \hat{k}\) is \(\hat{a}=\frac{1}{3}(\hat{i}+2 \hat{j}-2 \hat{k})\).
(D) If \(\vec{a}=3 \hat{i}\) and \(\vec{b}=4 \hat{j}\) then \(\vec{a} \cdot \vec{b}=12\).
(E) If \(\vec{a}\) and \(\vec{b}\) represent the adjacent sides of a triangle then its area is given of \(\frac{1}{2}|\vec{a} \times \vec{b}|\).
Choose the correct answer from the options given below :CUET 2023 Hard - Molar mass of a non-volatile solute (in g/mol) in its \(10\%\) by mass aqueous solution showing \(2\%\) decrease in its vapour pressure is :CUET 2023 Easy
- If \(A=\left[\begin{array}{lll}2 & 0 & 0 \\ 0 & 2 & 0 \\ 0 & 0 & 2\end{array}\right]\) then \(A^5\) is :CUET 2023 Easy
- If \(A\) is a square matrix of order 3 and \(|A|=5\), then the value of \(\left|-A A^T\right|\) is :CUET 2025 Easy
- A radioactive substance is emitting β- particles at a certain rate. When it is heated to a high temperature, the rate of emissionCUET 2025 Medium
- A person invested ₹ \(10000\) in a stock of a company for \(6\) years.
The value of his investment at the end of each year is given below:
The compound annual growth rate (CAGR) of his investment is:2018 2019 2020 2021 2022 2023 ₹11000 ₹11500 ₹13000 ₹11800 ₹12200 ₹14000
[Given (1.4) \({ }^{\frac{1}{8}}=1.058\) ]CUET 2025 Hard