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If a sequence is defined as a_n = 2n + 1, what is a_5?
If a sequence is defined as a_n = 2n + 1, what is a_5?
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Q1
If a sequence is defined as a_n = 2n + 1, what is a_5?
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a_5 = 2(5) + 1 = 10 + 1 = 11.
Questions & Step-by-step Solutions
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Q: If a sequence is defined as a_n = 2n + 1, what is a_5?
Solution:
a_5 = 2(5) + 1 = 10 + 1 = 11.
Steps: 5
Show Steps
Step 1: Identify the formula for the sequence, which is a_n = 2n + 1.
Step 2: Substitute n with 5 in the formula to find a_5.
Step 3: Calculate 2 times 5, which is 10.
Step 4: Add 1 to the result from Step 3, which gives 10 + 1.
Step 5: The final result is 11, so a_5 = 11.
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