Prove limit (x^n - a^n)/(x - n) = nx^(n - 1) as x approaches a

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Thank you, sir. I'm from Brasil and haven't found anithing about this subject except for your video. Thanks a lot

danielludersromanidezanosk
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If you expand (a+h)^n without factoring the a, the result (after taking the limit with h ->0) is a^n-1. So the factoring must be necessary to recover the n.

johnnelson
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Thank you so much! Now I can finish my homework haha

andre-arthur
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I'm mexican and it's a good videl

hinojosagustavo
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This is what I am studying for JEE Advanced in 12th

himaneeshbhattacharya
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sumitsaw
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Sir diploma ka 3rd semester ka question lecture and chapter revision video upload kar digiye

EC__DilipKumar