PYQ Vault

Day 71: MHT-CET Maths

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

  1. Question 1

    Differentiation. Asked 3 times: 3 May 2023 S2*, 16 May 2023 S2, 25 Apr 2025 S1 (* = numbers or wording changed that year) See all 3 times it was asked

    112
    If y=tan⁡−1(4x1+5x2)+cot⁡−1(3−2x2+3x)y=\tan^{- 1}\left( \frac{4x}{1 + 5x^{2}} \right)+\cot^{- 1}\left( \frac{3 - 2x}{2 + 3x} \right), then dydx\frac{dy}{dx} is equal to

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  2. Question 2

    Vectors. Asked 3 times: 9 May 2023 S1*, 9 May 2024 S2, 25 Apr 2025 S1 (* = numbers or wording changed that year) See all 3 times it was asked

    105
    If a‾=i^+j^+k^,b‾=j^−k^\overline{a}=\widehat{i}+\widehat{j}+\widehat{k},\overline{b}=\widehat{j}-\widehat{k} then a vector c‾\overline{c} such that a‾×c‾=b‾\overline{a}\times\overline{c}=\overline{b} and a‾⋅c‾=3\overline{a}\cdot\overline{c}= 3 is

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  3. Question 3

    Line and Plane. Asked 3 times: May 2022 S1*, 13 May 2024 S2*, 25 Apr 2025 S1 (* = numbers or wording changed that year) See all 3 times it was asked

    119
    A tetrahedron has vertices O(0,0,0),A(1,2,1)O(0,0,0),A(1,2,1), B(2,1,3),C(−1,1,2)B(2,1,3),C( - 1,1,2). Then the angle between the faces OAB and ABC will be

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  4. Question 4

    Differential Equations. Asked 3 times: 3 May 2023 S1, 10 May 2024 S2, 23 Apr 2025 S1 See all 3 times it was asked

    117
    The differential equation of all circles touching the Y -axis at the origin and center on the X -axis is

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  5. Question 5

    Applications of Derivative. Asked 3 times: 15 May 2023 S2, 10 May 2024 S1*, 22 Apr 2025 S2 (* = numbers or wording changed that year) See all 3 times it was asked

    140
    An open tank with a square bottom is to contain 4000 cubic cm. of liquid. The dimensions of the tank so that the surface area of the tank is minimum, is

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