This makes sense since the infimum is the greatest lower bound and every real number is a lower bound. In a section on set theory, I doubt they're trying to throw you a curve ball on non-Euclidean geometry. So, 2 is an even prime number. c. is the answer of the question please mark me as Brainlist and thanks, This site is using cookies under cookie policy. The set of natural numbers less than 1 C. The set of even numbers divisible by 3 D. The set of vowels in the word "ABILITY" As for c, it depends on your definition of a straight line. b - I did set theory with the OU and am 98% sure. For example: Set Q is inhabited, and contains the following three elements: x, y, z Q = {x, y, z} Set Ø (Null Set) is empty. Log in. Express the product of sines and cosines sin 2 theta + sin 4 theta ​, What is the smallest number which , when divided by 3,4,5,6,7, leaves a remainder 2?​, Quidilateral GOLD Ol=7.5cm,gl=6cm,gd=6cm,ld=5cm,od=10cm​, express into factors (x + 3y + 12z) (12yz + 4zx + xy) - 12xyz​, If A={aj ] 3x3 is a squaremaksix so that aija;2; 2 then A is​, 2) In the adjoining figure :i) Is Z1 adjacent to Z2?ii) Do ZCOE and EOD form a linear pair ?111) Is Z1 vertically opposite to 24?B3) Can two angles be how much money would i have if I saved up 5,200 for 6 years? A set of birds that cannot fly. Join now. Join Yahoo Answers and get 100 points today. The answer is b. The supremum of the empty set is $ … Ø = {} The symbols Ø and {} mean exactly the same thing. They are called tangents (with only one point touching the surface). 111) right?​, The value of p for 212 –192 =10p is 8. Set b is the answer. A straight line can be "bent" but still remain straight in a 2 dimensional form, ie lines of latitude and longitude on the earth. Can science prove things that aren't repeatable? •Which of the following is an empty set?• a. The set of squares with 5 sides. In some contexts a great circle can be considered a straight line. How do you use the quadratic formula, step-by-step. why create a profile on Shaalaa.com? Join now. Python Objective type Questions and Answers. 1. For example, the set of months with 32 days. b) No month of the year has 32 days, so we have the empty set. Null set (∅) : Which has no elements Ex 1.2, 1 Which of the following are examples of the null set (ii) Set of even prime numbers Prime numbers = 2, 3, 5, 7, 11, 13, 17,…. c) In the scope of Euclidean geometry, no line drawn on the surface of a sphere is a straight line. Months either have 30 or 31 days. 3. (a) Prove the following statement using the element method for prove that a set equals the empty set: For all sets A and B, A \cap (B - A) = 0. It is represented by the symbol { } or Ø. Tony Hsieh, iconic Las Vegas entrepreneur, dies at 46, Jolie becomes trending topic after dad's pro-Trump rant, Highly conservative state becomes hot weed market, Harmless symptom was actually lung cancer, No thanks: Lions fire Matt Patricia, GM Bob Quinn, Eric Clapton sparks backlash over new anti-lockdown song, 2 shot, killed at Northern Calif. mall on Black Friday, Black Friday starts off with whimper despite record day, Washington NFL team deletes tweet mocking Trump, How the post-election stocks rally stacks up against history. COMEDK 2014: Which of the following is an empty set? b) No month of the year has 32 days, so we have the empty set. Doing set theory in maths and stuck.. I think we can safely assume that straight means straight in the Euclidean sense, and that "on the sphere" means that the entire line lies completely on the sphere. February being the special case in which it has 28 days or 29 days if, B is the odd one out as all the other choices are at least mildly logical. This is the only question im asking and ive been reading over infinite sets but i can not get it someone plz help me thanks <3 ML The Null Set Or Empty Set. How do you think about the answers? Did McCracken make that monolith in Utah? Join now. Which of the following statements is used to create an empty set? I guessed b and c but not sure... b. The sum of their squares is 145? One positive integer is 7 less than twice another. Which of the following is an example of an empty set A. modapallivandana modapallivandana 2 weeks ago Math modapallivandana modapallivandana 2 weeks ago Math (v) D = {Prime numbers between 7 and 11} Because there is no prime number between 7 and 11. Join now. …, supplementary if both of them are :i) acute ?ii) obtuse ? c. A set of male animals that bear their offspring. So, we have the empty set ( I suppose you mean the entire line lies on the sphere's surface). d. A set … (A) x | x is a real number and x2 - 1 = 0 (B) x | x is a real number and x2 + 3 = 0 (C) x option b is also an empty set because there would be no common points to 2 parallel lines . Option A is an empty set because there would be no multiple of 7 which is less than 7 and belonging to the set of natural numbers . We should do our best to avoid this in the name of human solidarity, but the fact is that , for now, this is not an empty set. The set that does not contain any element is called empty setOption B defines the set of real numbers for x2 + 1 = 0 x2 = - 1 x = √(-1) = i which is an imaginary number but our set is defined on real numbersSo option B is correct differential equations mathematics (little exercise)? Thus, The set is not empty. Log in. The set of months of the year with 32 days, c. The set of straight lines drawn on the surface of a sphere, d. The set of prime numbers between 35 and 43, The answer is 'b'. So, we have the empty set ( I suppose you mean the entire line lies on the sphere's surface) d) Clearly this is not the empty set, because 37 and 41 are prime and lie between 35 and 43. (b) Use the properties in Theorem 5.2.2 to prove the You can sign in to vote the answer. Inform you about time table of exam. The diameter of the region representingGold score is 21 cm and each of the other bands is 10.5 cmwide. 2. Get your answers by asking now. Log in. It contains no elements: "nothing". If we were to presume that c was an empty set then we would be denying the existence of non-Euclidean geometry and therefore the existence of the D-circle. (A) x | x is a real number and x2 - 1 = 0 (B) x | x is a real number and x2 + 3 = 0 (C) x ​. empty set. Here, 2 is even. the set of all real numbers less than one billion. As for C, one can draw a tangential line on the surface of the sphere. You can draw straight lines on the surface of a sphere. d) Clearly this is not the empty set, because 37 and 41 are prime and lie between 35 and 43. We call a set with no elements the null or empty set. 1. There are some sets that do not contain any element at all. (iv) C = {Even numbers between 6 and 10} ∴ C = {8} Hence it is not an empty set. The set of odd numbers that are prime numbers B. I'm in favor of both (b) and (c). A set of planets with more than one satellite. …, outwards as Gold, Red, Blue,Black and White. New video tutorials information. You can specify conditions of storing and accessing cookies in your browser, which term of the progression is 18 -12 8 is 512/729​, 2. none of the above. Log in. A directory of Objective Type Questions covering … Ask your question. 1. No spams, the radius of the circle having area equal to the sum of the3. Find its width.? 12.3 depicts an archery target marked with its fivescoring regions from the centre How many Months have 32 days. Fig. Ask your question. c) In the scope of Euclidean geometry, no line drawn on the surface of a sphere is a straight line. b) No month of the year has 32 days, so we have the empty set. So the set is empty. a) Unfortunately, there are men with no teeth, sad but true. the set of whole numbers less than one billion. ∴ D = { } Hence it is an empty set. b. ∴ It is a null set. Click here to get an answer to your question ️ Which of the following is an empty set(a) {x: X E R and x- 1 = 0}(b) {x: X E R and x2 + 1 = 0}(C){x: x E R an… 1. Inform you about new question papers. If the area of a rectangular yard is 140 square feet and its length is 20 feet. Click here to get an answer to your question ️ Which of the following is an empty set(a) {x: X E R and x- 1 = 0}(b) {x: X E R and x2 + 1 = 0}(C){x: x E R an… 1.