First slide

Introduction to sets

Question

If $aN = {ax : x \in N}$ and $bN \cap cN = dN$ , where b $, c \in N$ are relatively prime, then

Easy

A

d=bc
B

c=bd
C

b=cd
D

None of these

Solution

bN= the set of positive integral multiples of b, cN = the set of positive integral multiplies of c.
$∴$ $bN \cap cN$ = the set of positive integral multiples of bc
= $dN \subset N$ , [ b,c are prime]

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App