hello

Asked by dhairya | 15th Jun, 2009, 04:00: PM

Expert Answer:

the zero of a plynomial is that value of the variable (in this case the variable is x) which takes the polynomial equal to zero.

The number of zeroes of a polynomial is equal to the degree of the polynomial. e.g. a second degree polynomial will have 2 zeroes..

Let the zeroes for the given poly. be m and 1/m(say)

for a quadratic

the sum of the zeroes =-B/A

product of the zeroes =C/A

so from   the given  information,

m+(1/m)= -13/5

m*(1/m)=-a/5..(ii)

so from (ii) we directly get that,

1=-a/5

so a = - 5

 

 

Answered by  | 15th Jun, 2009, 06:42: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.