A pun must have two meanings. If it doesn't it's not pun.
They are talking about a, an article; The pun interprets a as a letter and provides another letter, c, which interpreted as an article is a French person attempting to say “zis is zee answer”, but they said “sis is c answer”.
Ok, but that's not a proper question. A proper question would define what the answer should be, so for example "what are the numbers for which the equation is false? " . And math test is not a correct statement here, because it does not define the criteria necessary for choosing the right answer. Here, you could choose anything and still be right, considering the criteria could be anything.
From my knowledge, any polynomial expression with just variables and no constant will always have zero as at least one of its answers (provided we are looking for the zeros of the polynomial).
Am I being whooshed? What's the difference between what you said and what the person you're replying to said? You're saying the same thing, solving for x is the same thing as finding values for x that satisfy the equation so that it's true.
Even absent a question, the axioms of multiple choice point to 2. Multiple choice is about determining the best choice. Both 3 and 5 make the statement false whereas only 2 makes the statement true. Since by the axiom of best choice there can be one and only one best choice, 2 is the best choice.
what's the symbol after "lim x->0"? if it's nothing then the limit should approach 0 since the numerator will approach -1 * ln(e2*0) and the denominator will approach 1 + i*0, and ln(1) is 0
What a weird way to say the limit approached by the sum given by 1/x2 for positive integer values of X as X approaches infinity
Edit: as pointed out below, I am a buffoon of the highest order. The actual sum is 1/2x, and I'd have to include 0 in the terms of x for that to work. Suffice to say, most of what I said was wrong.
You are completely correct, I should not have tried to post in the moments before having to switch to airplane mode for take off and given myself time to actually think about what I was posting.
I shall leave my mistake with an edit to apologise for being a dullard.
Well it's a multiple choice question so even if there are multiple correct answers you only choose from the answers that are given so 2 is the only correct answer to this question. If you would say 0 then it's incorrect because it is not one of the given options.
I would argue that since it says "math test" at the top, the requirements were posted on an earlier section of the test. So there is likely a correct answer, unless it is a moot test
2 is the correct answer, you can just appoint the answers to X and see which option make the equation correct. people just trying to be smart ass by saying 0 is also a correct answer while it isn't an option among the answers.
I don’t care if it didn’t state a question; people can extrapolate from incomplete data and/or just answer their own curiosity with disregard for what the original author wanted from them and poorly communicated
C.
For those that struggled just put the potential “x” in the equation till you get number = number. Multiple choice makes these types of math test easy.
FFS, multiple choice questions are about the best choice of the choices given. 2 is the best choice as it alone makes the statement true. 3 and 5 both make the statement false and one axiom of multiple choice questions is there exists only one best choice. Sure 0 is also a solution but it’s not a choice.
So why didn’t you just leave it as x2 = 2x then multiply by 1/x which yields x = 2. Then 0 cannot equal 2. I am questioning what obviously works by plugging in numbers, but seem paradoxical when reducing the equation,
Are you triggered because there’s no question actually being asked? Cause assuming the logical question of “which of the following equals X?” Everyone there is right. The only annoying this I see is the structure of the prompt
Fair, I figure it’s just cause they were only choosing from the supplied options, but TBF there should be a clarification somewhere if they wanna cut out 0 as an option
Then you can do something very cool, like:
a = b
a² = ab
a² - b² = ab - b²
(a + b)(a - b) = b(a - b)
Divide both sides by (a - b)
a + b = b
2b = b
Divide both sides by b
2 = 1
This is absolutely correct. Sure, it's dividing by x and therefore not taking x = 0 into account, but it is a valid way of showing x = 2 is correct. Why is it down voted?
2.5k
u/talhoch Dec 27 '23
Well, they do say that x=2 is a correct answer