p+q=5 এবং p-q=3 হলে p2+q2 এর মান কত ?
Solution
Correct Answer: Option B
দেওয়া আছে,
p + q = 5
p - q = 3
p² + q² = [(p + q)² + (p - q)²] / 2
= [(5)² + (3)²] / 2
= [25 + 9] / 2
= 34 / 2
= 17
p + q = 5
p - q = 3
p² + q² = [(p + q)² + (p - q)²] / 2
= [(5)² + (3)²] / 2
= [25 + 9] / 2
= 34 / 2
= 17
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