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Write the set {x : x is a positive integ...

Write the set {x : x is a positive integer and `x^(2) < 40`} in the roster form.

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The correct Answer is:
`{1, 2, 3, 4, 5, 6}`
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Are the following pari of sets equal? Give reasons A= {x : x is a positive integers solution of x^(2)-2x-15=0 } B= {y : y in N, y^(2)= 25}

Match each of the set on the left described in the roster form with the same set on the right described in the set-builder form : (i) {P, R, I, N, C, A, L} (a) { x : x is a positive integer and is a divisor of 18} (ii) { 0 } (b) { x : x is an integer and x^(2) – 9 = 0 } (iii) {1, 2, 3, 6, 9, 18} (c) {x : x is an integer and x + 1= 1 } (iv) {3, –3} (d) {x : x is a letter of the word PRINCIPAL}

Which of the following pairs of sets are disjoint { x : x is an even integer } and { x : x is an odd integer}

Match roster forms with the set builder form. (i) {p,r,I,n,c,a,l} (a) {x : x is a positive integer and is a divisor of 18} (ii) {0} (b) {x : x is an integer and x^(2)-9=0} (iii) {1,2,3,6,9,18} (c) {x : x is an integer and x+1=1} (iv) {3,-3} (d) {x : x is a letter of the word PRINCIPAL}

In the following, state whether A = B or not: A = {2, 4, 6, 8, 10} B = { x : x is positive even integer and x ≤ 10 }

List all the elements of the following sets : C = {x : x is an integer, x^(2) ≤ 4 }

Taking the set of natural numbers as the universal set, write down the complements of the following sets: { x : x is a positive multiple of 3}

Write the following sets in roster form (i) A={ x : x is a natural number greater than 50 but smaller than 100} B={x : x is an integer, x^(2)=4} (iii) D={x : x is a letter in the word "LOYAL"}

Write the following sets in roster form: A = {x : x is an integer and –3 ≤ x < 7 }

Write the following sets in roster form : E= {x : x is a positive factor of 18}

KUMAR PRAKASHAN-SETS-TEXTBOOK ILLUSTRATIONS FOR PRACTICE WORK
  1. Write the solution set of the equation x^(2)+x -2=0 in roster form.

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  2. Write the set {x : x is a positive integer and x^(2) < 40} in the rost...

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  3. Write the set A = {1, 4, 9, 16, 25, . . . }in set-builder form.

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  4. Write the set {(1)/(2),(2)/(3),(3)/(4),(4)/(5),(5)/(6),(6)/(7)} in the...

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  5. Match each of the set on the left described in the roster form with th...

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  6. State which of the following sets are finite or infinite. (i) {x : x...

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  7. State which of the following sets are finite or infinite : {x : x in...

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  8. State which of the following sets are finite or infinite : {x : x in...

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  9. State which of the following sets are finite or infinite : {x : x in...

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  10. State which of the following sets are finite or infinite : {x : x in...

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  11. Find the pairs of equal sets, if any, give reasons: A = {0}, B = {x ...

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  12. Which of the following pairs of sets are equal? Justify your answer. ...

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  13. Which of the following pairs of sets are equal? Justify your answer. ...

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  14. Consider the sets phi, A={1,3}, B={1,5,9}, C={1,3,5,7,9}. Insert the s...

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  15. Consider the sets phi, A={1,3}, B={1,5,9}, C={1,3,5,7,9}. Insert the s...

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  16. Consider the sets phi, A={1,3}, B={1,5,9}, C={1,3,5,7,9}. Insert the s...

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  17. Consider the sets phi, A={1,3}, B={1,5,9}, C={1,3,5,7,9}. Insert the s...

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  18. Let A = { a, e, i, o, u} and B = { a, b, c, d}. Is A a subset of B ? N...

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  19. Let A, B and C be three sets. If A ∈ B and B ⊂ C, is it true that A ⊂ ...

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  20. Let A = { 2, 4, 6, 8} and B = { 6, 8, 10, 12}. Find A ∪ B.

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