If a - b = 3 and a2 + b2 = 29, find the value of ab.
A. 10
B. 12
C. 15
D. 18
E. None of these
Answer: Option A
Solution(By Examveda Team)
2ab = (a2 + b2) - (a - b)22ab = 29 - 9
2ab = 20
∴ ab = 10
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Good Explanation