A.  -1/x√(x2-1)

B.  1/x√(x2-1)

C.  2/(x√x2+1)

D.  -2/x√(x2+1)

1
Correct Answer :
-1/x√(x2-1)
Explanation :
No Explanation available for this question

Interview Questions

MongoDB
Java Script
Node JS
PHP
JQuery
Python