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in JEE by (275 points)
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The number of elements in the set { (a,b): 2a2 + 3b2 = 35 , a,b belongs to Z } where X is set of all integers is

a) 2         b) 4

c) 8        d) 12

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1 Answer

+1 vote
by (59.9k points)

The possible sets are {±2 ,± 3} and {±4, ±1};

Therefore, number of elements in the required set is 8.

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