Easy
1 point
ID: #25524
Question
x+y = 5 ; x -y = 3 হলে x² +y² এর মান কত?
Options
1
17
Correct Answer
2
18
Correct Answer
3
20
Correct Answer
4
22
Correct Answer
Explanation
আমরা জানি, 2(x² + y²) = (x + y)² + (x - y)²। 2(x² + y²) = 5² + 3² = 25 + 9 = 34। সুতরাং, x² + y² = 34/2 = 17।
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Type
Single Choice
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