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Mathematics
OpenStudy (anonymous):

what is the second derivative of y = √(x^2 -4) - 2sec^-1 (x/2) with respect to x ? a. 4/(x^2√(x^2-4) b. 4/√(x^2-4) c. -4/(x√(x^2-4) d. 0

OpenStudy (anonymous):

i get Letter A here. can u pls check guys

sam (.sam.):

Did you asked wolf?

OpenStudy (anonymous):

i forgot to asked it but im not trusted the answer their sometimes

sam (.sam.):

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