arithmetic sequences calculation of terms and common difference
Let (`u_(n)`) be an arithmetic sequence of common difference -3, and of first term `u_(0)= 2 `.
1. Give the expression of `u_(n)` as a function of n.
2. Compute `u_(4)`
1. Give the expression of `u_(n)` as a function of n.
2. Compute `u_(4)`
Course reminder : Numerical sequences