TS EAMCET · Maths · Application of Derivatives
A point is moving on \(y=4-2 x^2\). The \(x\)-coordinate of the point is decreasing at the rate of 5 units/second. Then, the rate at which \(y\) coordinate of the point is changing when the point is at \((1,2)\) is
- A 5 unit/s
- B 10 unit/s
- C 15 unit/s
- D 20 unit/s
Answer & Solution
Correct Answer
(D) 20 unit/s
Step-by-step Solution
Detailed explanation
Given equation of curve is \[ y=4-2 x^2 \] On differentiating both sides w.r.t. \(t\), we get…
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