Continuity and Differentiability
RS Aggarwal
CBSE
Grade 12
Question:
If $\cos y = x \cos(a + y)$ with $\cos a
eq \pm 1$, prove that $\dfrac{dy}{dx} = \dfrac{\cos^2(a + y)}{\sin a}$.
Step-by-Step Solution
Key Concept: x = cos y / cos(a+y) => dx/dy = sin a / cos^2(a+y).
The detailed step-by-step mathematical proof is available inside the Mathbee app workspace.
Correct Answer:
Confused by the solution? Ask the AI to explain a specific step, tell you where you went wrong, or break down the key trap in this question.