Re: DSE 2012- Question 16,29 and 30.

Posted by wolverine on Apr 23, 2013; 9:19pm
URL: http://discussion-forum.276.s1.nabble.com/DSE-2012-Question-16-29-and-30-tp7580148p7580158.html

q16) x^7-x-1=0

as the eqn is of 7th order..so it will hav 7 roots...complex roots occurs in pair..so if the eqn has 6 complex roots..than for sure one of the root is real.and using a good approximation of around 1.1 its directs towards option c.

else newton raphson method can be used .