If sqrt(y+x) + sqrt(y-x) = a, a > 1, d^2y/dx^2 is equal to : Option 1: -2/a Option 2: -a^2/2 Option 3: 2/a^2 Option 4: 2/a

The answer is '2/a^2'. View full solution:

CUET Mathematics - If sqrt(y+x) + sqrt(y-x) = a, a > 1, d^2y/dx^2 is equal to : | PYQs + Solutions

CUET Mathematics 2022 6 Aug Shift 2

Calculus

Medium

$-\frac{2}{a}$

$-\frac{a^2}{2}$

$\frac{2}{a^2}$

$\frac{2}{a}$

✅ Correct Option: 3

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List-I	List-II
(A) $f(x) = x \sin x$	(I) is not continuous at $x = -3$
(B) $f(x) = \frac{\vert x\vert }{x}, x \neq 0$ and $f(x) = 1 \text{ at } x = 0$	(II) is continuous everywhere
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(D) $f(x) = e^{\vert x - 1\vert }$	(IV) is not continuous at $x = 0$

Choose the correct answer from the options given below: