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- If a - b = 3 and a^2+b^2=29, then find the value of ab
Question 1:
If a - b = 3 and a^2+b^2=29, thenfind the value of ab
A. 8
B. 10
C. 12
Feedback Remember the formula, if not then cram it :)
2ab=(a^2+b^2)−(a−b)^2
=> 2ab = 29 - 9 = 20
=> ab = 10
2ab=(a^2+b^2)−(a−b)^2
=> 2ab = 29 - 9 = 20
=> ab = 10
D. 14
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