Menu Close

Question-122836




Question Number 122836 by sandy_delta last updated on 20/Nov/20
Commented by sandy_delta last updated on 20/Nov/20
please help
$$\mathrm{please}\:\mathrm{help} \\ $$
Answered by Snail last updated on 20/Nov/20
As it is a 4th degree real polynomial.....then if  complex roots will occur in conjugate pair  That is why the other two roots will be( c−i)   and (2−id)      ii) As u have got 4 roots..now use vietas relation  to evaluate c and d
$${As}\:{it}\:{is}\:{a}\:\mathrm{4}{th}\:{degree}\:{real}\:{polynomial}…..{then}\:{if} \\ $$$${complex}\:{roots}\:{will}\:{occur}\:{in}\:{conjugate}\:{pair} \\ $$$${That}\:{is}\:{why}\:{the}\:{other}\:{two}\:{roots}\:{will}\:{be}\left(\:{c}−{i}\right)\: \\ $$$${and}\:\left(\mathrm{2}−{id}\right) \\ $$$$ \\ $$$$ \\ $$$$\left.{ii}\right)\:{As}\:{u}\:{have}\:{got}\:\mathrm{4}\:{roots}..{now}\:{use}\:{vietas}\:{relation} \\ $$$${to}\:{evaluate}\:{c}\:{and}\:{d} \\ $$$$ \\ $$

Leave a Reply

Your email address will not be published. Required fields are marked *