Induction Inequality Proof: 3^n is greater than or equal to 2n + 1

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Induction Inequality Proof: 3^n is greater than or equal to 2n + 1

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Sir, I am literally thankful of this channel and your existence. Thank you!

dccarajay
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Thank you so much Sir . This video is really very helpful for me.

preranabhoi
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Thank the lord this video found me, you saved me hours of pain yet again!

Gizmare
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can you show 3(2k + 2 + 1) by adding values to left side (this should be ok because it's greater than) and then simply say 3(2k + 2 + 1) is greater than 2(k + 1) + 1 because our domain is positive integers and the same equation * 3 is greater than the one that's not

autumnmiloser
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i am so confused as to how and why inequality sign changed mid calculations.

Voyk
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You must used
(1+x)^n>=1+nx
n€IN and x€IR+

maths
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inequality n² ≤ 9 = 0, 1, 2 and 3 I know is -1, -2 and -3 but can someone explain it why or show me step by step

haydeehernandez
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ur thumbnail is different from the proof u do btw lool

jeffreychan
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6:42 the explanation for this makes no sense, you kept the multiplication of 3*1 in 2k+3 but you're free to throw away 3x2k? Where did it go? Why is one okay without the other?

Sellipsis