2K is short for 2000. That's one number.
2k
10(2k + 5)
There are infinitely many rational numbers.
Infinitely many. there are infinitely many numbers between any two numbers.
Infinitely many. Between any two different real numbers (not necessarily rational) there are infinitely many rational numbers, and infinitely many irrational numbers.
The equation 2K + Br2 -> 2KBr is balanced as there are equal numbers of atoms of each element on both sides of the reaction.
Oh, dude, 2k x k is just 2k^2. It's like multiplying 2 by k and then squaring the result because math loves to keep things interesting. So yeah, 2k x k equals 2k^2, but like, who's really keeping track anyway?
The non zero multiples of a number k are all numbers which can be written as n*k where n is not 0. So ..., -3k, -2k, -1k, 1k, 2k, 3k, ...
there are 2k in 2km
The sum of the even numbers up to 2k, where k is an integer, is k(k + 1) = k2 + k
Suppose N stands for any number. Then 2N will always be even, so 2N + 1 will always be odd. Now let K stand for any other number. Then 2K + 1 will be another odd number. Now suppose we add these two odd numbers ; 2N + 1 + 2K + 1 = 2N + 2K +2 Factor out a 2, 2(K + N + 1) So the result of adding two odd numbers always gives a number which has the factor 2. So it is always an even number. Now add an even number 2N with an odd number 2K + 1 to get; 2N + 2K +1 . Since 2N + 2K is always an even number (has the factor 2 ) then 2N + 2K + 1 will always be an odd number.
Registers represent the number of memory locations. A 2K memory chip has 2x1024=2048 memory locations. Hence there are 2048 registers in a 2K memory.
2K
You can prove that 2K,2K,1-1 by first determining that the integer N can be written in the form of N=2K.
Algebraically, this can be seen: An odd number is one more than an even number, and all multiples of 2 are even numbers. Let three odd numbers be (2n + 1), (2m + 1) & (2k + 1) for some n, m & k. Adding them gives: (2n + 1) + (2m + 1) + (2k + 1) = 2n + 2m + 2k + 1 + 1 + 1 = 2n + 2m + 2k + 2 + 1 = 2(n + m + k + 1) + 1 which is one more than an even number - an odd number.
Odd numbers are those of the form 2k+1 for some integer k.
2k