Polynomial class 10th part-2

Class 10 polynomial

Prove that tan(pi/10) is a root of polynomial equation 5x^4-10 x^2+1=0.

The smallest value of th polynomial x^(3) - 18 x^(2) + 96 x in [0,9] is

The width of each of five continuous classes in a frequency distribution is 5 and the lower class limit of the lowest class is 10. The upper class limit of the highest class is

Find the class marks of classes 10-25 and 35-55.

Find the class marks of classes 10-25 and 35-55.

If the upper and the lower limits of a class interval are 16 and 10, the class-interval is ...

In a frequency distribution, the mid values of a class is 10 and width of the class is 6 . The lower limit of the class is

If (x+ p) is a factor of the polynomial 2x^2 +2px+5x 10 . find p.