allery36 இல் எத்தனை நேர்மறை வகுப்பிகள் உள்ளன?
A6
B7
C8
D9
Answer & Solution
Correct answer: D. 9
36 = 2^2 x 3^2.
வகுப்பிகளின் எண்ணிக்கை = (2+1)(2+1) = 9. வகுப்பிகள்: 1, 2, 3, 4, 6, 9, 12, 18, 36.
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