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If aN = {ax|x in N} and bN nn cN = dN, w...

If `aN = {ax|x in N}` and `bN nn cN = dN`, where `b,c in N`, then

A

d=bc

B

c= bd

C

b=cd

D

d=LCM(c and b)

Text Solution

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The correct Answer is:
D
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OBJECTIVE RD SHARMA-SETS-Exercise
  1. IF sets A and B are defined as A={(x,y):y-(1)/(x),0ne x in R} B= {(x...

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  2. if a N={a x:x iin N} and b N cap c N , where b,c in Nare relative...

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  3. If aN = {ax|x in N} and bN nn cN = dN, where b,c in N, then

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  4. In a town of 10,000 families it was found that 40% family buy newspape...

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  5. In a town of 10000 families, it was found that 40% families buy ne...

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  6. Consider the set A of all matrices of order 3 xx 3 with entries 0 or 1...

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  7. if A and B are two sets , then A cap (A cup B) equals

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  8. if n(A)=n, then P(A) has

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  9. if A ={phi ,{phi}}, then the power set of A is

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  10. Let A and B have 3 and 6 elements respectively , what can be the...

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  11. Two finite sets have m and n elements . The total number of subs...

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  12. if X and Y are two sets , then X cap (Y cup X)'equals

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  13. Let A= {x: is a multiple of 3 } and B= { x:x is a multiple of 5}...

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  14. Let A ={1,2,3},B={3,4},C={4,5,6}.thenAcup (B cap C)is

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  15. Let A and B be two non-empty subsets of a set X such that A is ...

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  16. Let U be the universal set for sets A and B such that n(A) =200 ...

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  17. Out of 800 boys in a school, 224 played cricket, 240 played hockey and...

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  18. From 50 students taking examinations in mathematics, physics and chemi...

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  19. Let Z be the set of all integers and A={(a,b):a^(2)+3b^(2)=28 ...

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  20. In a class of 35 students , 17 have taken Mathematics , 10 have ta...

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