1 Answers
sumit_kumar
·2010-02-05 09:10:51
Q5 find dy/dx where y=cot-1x/x
a) (x/(1+x2)+cot-1x)/x
b) (x/(1+x2)+cot-1x)/x2
c) -(x/(1+x2)+cot-1x)/x
d) -(x/(1+x2)+cot-1x)/x2
Correct Answer: (d)
plz show the working