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Finding the first term
- Thread starter albswb
- Start date
What is the first term of an arithmetic sequence with 100th term 25 and common difference 0.2?
I have no clue how to find this out...please help!
1. An arithmetic sequence has the general equation:
\(\displaystyle a_n = a_0 + n \cdot d\)
2. Plug in the known values and solve for \(\displaystyle a_0\)
1. An arithmetic sequence has the general equation:
\(\displaystyle a_n = a_0 + n \cdot d\)
2. Plug in the known values and solve for \(\displaystyle a_0\)
Pappus, I spy an error in your formula above. It should be:
\(\displaystyle \displaystyle a_n = a_1 + (n-1)\cdot d\)
Last edited:
D
Deleted member 4993
Guest
Pappus, I spy an error in your formula above. It should be:
\(\displaystyle \displaystyle a_n = a_0 + (n-1)\cdot d\)
If the first term of the sequence is a1 - then the equation should be:
\(\displaystyle \displaystyle a_n = a_1 + (n-1)\cdot d\)
If the first term of the sequence is a1 - then the equation should be:
\(\displaystyle \displaystyle a_n = a_1 + (n-1)\cdot d\)
Yup. I was too quick on the click (of the mouse). Thanks