What will be the differential function of log(x2 + 4)?

1.	What will be the differential function of log(x2 + 4)?
A.	2x/(x<sup>2</sup> + 4) dx
B.	2x/(x<sup>2</sup> 4) dx
C.	-2x/(x<sup>2</sup> + 4) dx
D.	-2x/(x<sup>2</sup> 4) dx
Answer» B. 2x/(x<sup>2</sup> 4) dx

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What will be the differential function of log(x2 + 4)?

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