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Differential Equations

NCERT Exemplar Class 12

CBSE

Grade 12

Question:

Order of differential equation $\left(\dfrac{d^2 y}{dx^2}\right)^2 + \cos\left(\dfrac{dy}{dx}\right) = 0$ is:
(a) $2$
(b) Not defined
(c) $1$
(d) $3$

Step-by-Step Solution

Highest order derivative present is d^2y/dx^2 => Order 2. [1.0 Mark]

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🎯 Official CBSE Marking Scheme:
Selecting $2$: 1.0 Mark

Correct Answer: $2$

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