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  • 1 Post By skipjack
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July 1st, 2018, 12:42 AM   #1
Joined: Aug 2017
From: India

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Find the relation

The problem is
My Attempt:
2r\pi + 4x = 2,
d/dx(r^2\pi + 4x^2) = 0;
But both the equations does not seem to give me the result. Please help.
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MathsLearner123 is offline  
July 1st, 2018, 01:51 AM   #2
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You should have $x^2$ instead of $4x^2$. It's then easy to show that choice (3) is correct.
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find, relation

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