If y = e x - e -x then dy / dx √(y 2 + 4) is equal to

CA Foundation · Quantitative Aptitude · MTP · September 2026
If y = e x - e -x then dy / dx √(y 2 + 4) is equal to
(A) A. 1
(B) B. -1
(C) C. 0
(D) D. None of these

Suggested Answer and Working Notes:

Correct Answer: Option (C)

C. 0

Topics: Part-A: Business Mathematics

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