CBSE 2024 · Region 5 · Set 1 · Q10 · 1 mark
Given a curve $\displaystyle \mathrm{y}=7 x-x^{3}$ and $\displaystyle x$ increases at the rate of $\displaystyle 2$ units per second. The rate at which the slope of the curve is changing, when $\displaystyle x=5$ is :
Official answer
From CBSE’s own marking scheme for this paper.
(A)
-$\displaystyle 60$ units/sec
Application of DerivativesRate of Change of QuantitiesApplymcqmedium
More from Application of Derivatives
- Overspeeding increases fuel consumption and decreases fuel economy as a result of tyre rolling friction and…2024 · asked 3×
- Let f(x) be a continuous function on [a, b] and differentiable on (a, b). Then, this function f(x) is…2024 · asked 3×
- A carpenter needs to make a wooden cuboidal box, closed from all sides, which has a square base and fixed…2025 · asked 3×
- At a birthday party, children are being served orange juice in conical cups, as shown in the figure. Each cup…2026 · asked 3×
- A company produces cylindrical tumblers, open from the top. Since they want uniformity in the product, they…2026 · asked 3×
- Sooraj's father wants to construct a rectangular garden using a brick wall on one side of the garden and wire…2023 · asked 3×
- If f(x)=a(x- cos x) is strictly decreasing in R, then ' a ' belongs to2023 · asked 3×
- A tank, as shown in the figure below, formed using a combination of a cylinder and a cone, offers better…2023 · asked 3×
CBSE Class 12 Mathematics past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.