mathematical induction problem no.2

sorry for my laziness of not typing it!

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- January 12th 2008, 02:16 AMafeasfaerw23231233mathematical induction problem no.2
mathematical induction problem no.2

sorry for my laziness of not typing it! - January 12th 2008, 09:44 AMtopsquark
- January 12th 2008, 08:05 PMSoroban
Hello, afeasfaerw23231233!

Here's another approach . . .

Quote:

Given: . . for all positive integers

find the value of: .

We have: .

. . . . . . . . .

. . . . . . . . .

Let

Let

Let

Hence: .

Therefore: .

- January 12th 2008, 08:45 PMafeasfaerw23231233
thanks. i shouldn't make it as [1x4-2]^3+[2x4-2]^3+...