X,Y are polynomials of n, and n is an element of N, then

[nirajnishad]

Homework Statement

X={4^n-3n-1/ n belongs to N}
Y={9(n-1)/ n belongs to N }

Homework Equations

then,
XUY is equals to X or Y or N or None of these

 

[HallsofIvy]

First, list some of the members of X and Y.

But does "4^n-3n-1/ n" mean
4^(n- 3n- 1/n)

or 4^(n- 3n- 1)/n

or ((4^n)- 3n- 1)/n

or 4^n- 3n- (1/n)?

Please be precise.

 

[dharavsolanki]

Exactly. List the members of X and Y. Also, try and visualize the equations mentally as what they are describing in words. Apne aap kuchh samajh main aa jayega!

Phir, come back and post here