2. Find the fourth term of the expansion of (a + 2b)¹0 without writing out the entire expansion.
2. Find the fourth term of the expansion of (a + 2b)¹0 without writing out the entire expansion.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:2. Find the fourth term of the expansion of (a + 2b)¹0 without writing out the entire expansion.
3. Use mathematical induction to prove that the statement is true for every positive integer, n:
6 + 12 + 18+...+ 6n = 3n(n+1)
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