what's the answer for this. 2ab×(a+b)
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Average Speed = 2ab/(a + b)
Applicable when one travels at speed a for half the distance and speed b for other half of the distance. In this case, average speed is the harmonic mean of the two speeds.
Answered by
1
2ab (a+b)
= 2a²b + 2ab²
Hope it helps ❤
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