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Questions  

Let x=2222 upto and y=2+2+2+2+ upto , then x-y equals

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a
0
b
1
c
2
d
none of these

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detailed solution

Correct option is A

we have ,x2=2x and y2 = 2+y⇒x(x−2)=0 and (y−2)(y+1)=0⇒ x=2,y=2 [∵x,y>0]⇒x−y=0

ctaimg

Similar Questions

The sum of the first n  terms of the series

12+2.22+32+2.42+52+2.62+..........  is n(n+1)22,  when n  is even. When n  is odd the sum is

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