alleryThe order and degree of $x^2 \dfrac{d^2y}{dx^2} + 3x \dfrac{dy}{dx} + 4y = 0$ are respectively:
A1, 1
B2, 1
C2, 2
D1, 2
Answer & Solution
Correct answer: B. 2, 1
Highest-order derivative is $d^2y/dx^2$ → order 2. Its power is 1 → degree 1.
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