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Question

If ab=cd = ef and 2a4b2+3a2c25e4f2b6+3b2d25f5 = (ab)n then find the value of n.

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Solution

Given, ab=cd = ef
and 2a4b2+3a2c25e4f2b6+3b2d25f5=(ab)n
Let ab=k
Putting a=kb,c=kd,e=kf in numerator, we get
Therefore, 2k4b6+3k4b2d25k4f52b6+3b2d25f5=k4=(ab)4
n=4

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