Note 1

Take Note:

Take a note while surfing.





Note With Ink

Give your Note a Colorful Tag.




Easy to Access

Stay on same information and in Sync wherever you are.

Note 2

Take Note:

Organize your information,It may take Shape.





Think With Ink

Differ your Content by Color.




Easy to Access

Easy to pull up your content from anywhere anytime.

Note 3

Take Note:

Don't Let information to miss,Because it take shape





Note With Ink

Simple an Easy Way to take a note.




Easy to Access

Get the same in next visit.


Please wait...

Arithmetic Aptitude :: Square Root and Cube Root

1. In the polynomial f(x) =2*x^4 - 49*x^2 +54, what is the product of the roots, and what is the sum of the roots (Note that x^n denotes the x raised to the power n, or x multiplied by itself n times)?

Answer: Option A

Explanation :

The given equation is of type ax^4+bx^3+cx^2+dx+e.





Product of roots=(-1)^n*(coeff of constant term/coeff of x^4)= e/a = 54/2 =27



Sum of roots= -(coeff of x^3/coeff of x^4)= -b/a = -0/2=0

Asked In :: TCS

Post Your Answer Here:     

q4i-reply-your-answer Reply     |    Rate This: +1 -0      |     Report     |     To Reading List



Report Error

Please Login First Click Here