Pre_Calculus_9.2-9.3.pdf - MDHS Precalculus 9.2 Recommended reading Section 9.2 in text Arithmetic Sequences and Partial Sums Objectives 1 Recognize

Pre_Calculus_9.2-9.3.pdf - MDHS Precalculus 9.2 Recommended...

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MDHS Precalculus 9.2 Recommended reading: Section 9.2 in text. Arithmetic Sequences and Partial Sums Objectives: 1. Recognize, write, and find the terms of arithmetic sequences. th n 2. Find partial sums of arithmetic sequences. th n Arithmetic Sequences A sequence whose consecutive terms have a common difference is called an arithmetic sequence. Example 1 Arithmetic Sequences The sequence whose term is is arithmetic. For this sequence, the common difference th n n 4 + 3 between consecutive terms is 4. Find the first 5 terms.
Example 2 Finding the Term th n Find a formula for the term of the arithmetic sequence whose common difference is 3 and th n whose first term is 2. Example 3 Using a Recursion Formula Find the ninth term of the arithmetic sequence that begins with 2 and 9. The Sum of a Finite Arithmetic Sequence There is a formula for the sum of a finite arithmetic sequence.
Example 3 Sum of a Finite Arithmetic Sequence Find the sum: 1+3+5+7+9+11+13+15+17+19 By calculator: By the equation: Example 4

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