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Let P denote the set of all positive integers and S = {(x,y) : x,y belongs to P and x 2 – y 2 = 666} the number of distinct elements in the set S is : (A) 0 (B) 1 (C) 2 (D) more than 2

Let P denote the set of all positive integers and 
S = {(x,y) : x,y belongs to P and x2 – y2 = 666}
the number of distinct elements in the set S is :
(A) 0
(B) 1
(C) 2
(D) more than 2

Grade:11

2 Answers

Vikas TU
14149 Points
4 years ago
Dear student 
P is the positive integer , So , The ans of this question will be 
More than 2 
So , D is corect ans . 
Hope this will help 
Good Luck 
Amlan Chakraborty
13 Points
one year ago
The answer will be 0. Cause if we make it (x+y)(x-y)=666 there will bew no such values supporting this statement. cause 666= 18×37 .

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