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The intervals of the set {x:x in R and -...

The intervals of the set `{x:x in R and -3 lt le 15}` is

A

[-3,15)

B

(3,15)

C

(-3,15]

D

[-3,15]

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The correct Answer is:
C
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Write the follwing sets as intervals. (i) (x:x in R, -3 lt x le 15) (ii) (x:x in R, -2 lt x)

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Write the sets in the roster form A = {x : x in W and 5 lt x le 9}

Given the universal set , sum ={x:x in N, 15 lt x le 26} , list the elements of the following sets: (i) A ={x:x gt 20} , (ii) B={x : x le 21}

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If A={x:x in N and 3 le x lt7} , then A = ?

Write the following as intervals : (i) {x : x in R , 4 < xlt= 6} (ii) {x : x in R , 10 < x < 12} (iii) {x : x in R , 0lt= x < 7} (iv) {x : x in R , 3lt= x lt=4}

List the elements of the solution set of the inequation -3 lt x - 2 le 9 - 2x, x in N .

Which of the following is a null set? {x:x in Z and (-1)/(2) lt x lt (9)/(2)} {x:x in N andx-4 le 15} {x:x in N, xlt 5 and x gt 8} {x:x in N and x^(2) lt 40}

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AAKASH INSTITUTE ENGLISH-SETS -SECTION-A(Objective Type Questions (One option is correct))
  1. If P(A)=P(B) then

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  2. Which of the following is true?

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  3. The intervals of the set {x:x in R and -3 lt le 15} is

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  4. The intervals (2,7) can be represented by the

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  5. Which of the follwing represent power set of (0,3)?

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  6. If M={3,6,9,18,27} and N={1,3,9,27} then M cup N is

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  7. The pair of disjoint sets are

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  8. Let A be the sets of the letters in the world "RAIGARH" and B be the s...

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  9. If D={x:x is divisible by 2 and 3 and 0 lt x lt 20} and B={x:x is a mu...

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  10. The shaded area in given Venn diagram represent

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  11. Which of the following Venn diagram represent (A-B)?

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  12. For all sets A and B, A - (A nn B) is equal to "………"

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  13. Let A={x:x is a prime number less than 10} and B={x:x in N and 0 lt x ...

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  14. If X and Y are two stes than X cap (X cap Y) equals to

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  15. If X and Y are two subsets of the unitversal set U and X' denotes the ...

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  16. If M={x: x le 7 and x in N} for universal set of natural number, then ...

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  17. For any two sets A and B, A' – B'=

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  18. For any two sets A and B, the value of [(A-B) cup B] is equal to

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  19. n(A)=20, n(B)=18 and n(A cap B)=5, then n(A cup B) is

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  20. n(A)=20, n(B)=18 and n(A cap B)=5, then n(A cup B) is

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