if xy =1 then y 2 + d 2 y / dx 2 = ?

CA Foundation · Quantitative Aptitude · MTP · September 2025
if xy =1 then y 2 + d 2 y / dx 2 = ?
(A) A. 1
(B) B. 0
(C) C. 2
(D) D. none of these

Suggested Answer and Working Notes:

Correct Answer: Option (B)

B. 0

Topics: Part-A: Business Mathematics

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