If y = ax^n+2 + bx^n+1, then x^2d^2y/dx^2 is equal to Option 1: (n+1)(n+2)x^n Option 2: (n+1)(n+2)y Option 3: a(n+2x^n+2) - b(n+1x^n+3) Option 4: (n+1)(x+2)/x^n

The answer is '(n+1)(n+2)y'. View full solution:

CUET Mathematics - If y = ax^n+2 + bx^n+1, then x^2d^2y/dx^2 is equal to | PYQs + Solutions

CUET Mathematics 2026 26th May Shift 2

Calculus

Medium

core

$(n+1)(n+2)x^n$

$(n+1)(n+2)y$

$a\left(\dfrac{n+2}{x^{n+2}}\right) - b\left(\dfrac{n+1}{x^{n+3}}\right)$

$\dfrac{(n+1)(x+2)}{x^n}$

✅ Correct Option: 2