Suppose n1,n2 are positive integers and gcd(n1,n2) = 1. Then for every integer x, if n1 | x and n2 | x, then n

Let n be an integer, use the definition of even to prove that 10n+ 4 is even. 10n+4=0x0 Since is a is an integer.is is also an integer. Since 10n+4 equals 2 times an integer, 10n+ 4 is even.

Please answer True or False for the following Statements... 1. Let x be an integer. Then if 7x+4 is even, then 3x-11 is odd. 2.Let x and y be real numbers. If x^2-4x = y^2-4y and x!=y then x+y=4 3. There exists no positive integer n such that 2n<n^2<3n

4. Show that if n is a positive integer, then fo(n) (20(n) (2n) = if n is odd if n is even.

Prove the following for Integers x and y, (17 | 10x + 8y) = (17 | 3x + 16y)

hcf(a, n) 9. Let a,b be coprime positive integers. Prove that for any integer n there exist integers s,t with s> 0 such that sa+tb=n. I need a positive multiple of a f the new Danish thrillon D