Easy
1 point
ID: #26408
Question
x+y = 12, x-y = 2, হলে xy এর মান কত?
Options
1
70
Correct Answer
2
35
Correct Answer
3
144
Correct Answer
4
140
Correct Answer
Explanation
$4xy = (x+y)^2 - (x-y)^2 = (12)^2 - (2)^2 = 144 - 4 = 140$। সুতরাং, $xy = 140/4 = 35$।
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Type
Single Choice
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