Recent content by look416

oh, so the variable x is account for the decimals among the integers, i see

ok,but that raise me to another problem it says that for each real number x such that 0 ≤ x < 1. , which means that the whole relation only valids for that range? requires some help on understanding the relation between the a-b and x

but its stating it owns one equivalence class only, i thought there should be infinite sets of classes?

Given the set S, where aSb if and only if a - b \in Z It is asking for the equivalence class and the answer given is S has only one equivalance class for each real number x such that 0 ≤ x < 1. the class [x] is given by {x + k : k \in Z} i dun get it, since S is a set of relation where a...

which mean my 2 is not needed?

mind share your ways to measure them? for object weights 20,dodo just solve it for me ^^

Question : Please give 8 weights which can weigh from 1 ... to 3280. you can put these 8 weights on either side of the balance, but you only can use once. Approach: have done few approach, most nearest one is 1,2,3,13,39,117,351,1053 but adds up to 1755 only,which mean i can only weigh...

i need more clarification of this, HallsofIvy, why we are mapping from 2n+1 to -n for odd numbers and 2n to n for even numbers?

Now,i got one more question, when n = 0, f[x] = 0, but when n = 1, f[x] = 0 too, this will make my function into a not one to one function ady

Thx Chiro, i see how the sequence goes ady. So, we are ignoring the floating point division but instead focusing on the integer division... i see

This is making think the function is contradicting. the question is asking me to find a function f : N → Z which is one-to-one and has range Z. the problem is the number is integers in Z is bigger than the number of integers in N. The only way i can think of is optional function, even that...

hmmm, why is it required to be assuming there must be 6 out of 10? i dun get the statement here

wow, you open another door for me to see about it, because typically, i still struggle in the ways to determining the correct ways to find the actual answer thx for teaching me such a nice approach to these problems

Homework Statement In this problem a string is an ordering of letters ILLINOIS a. how many such strings are there b. in how many strings, such as LSLOINII, does each L appear before each I? c. In how many strings does one I appear the L? The Attempt at a Solution a. this is pretty...

ops sorry, watching wrong posts so regarding the bathtub curve, are meant to test the reliability of the building in this case, i got it, so they never really account the entropy in when they building it, but using the time to failure curves as a reference thanks andy. just help me close the...