| 1 | n-th term of a geometric sequence or geometric progression with initial value and common ratio |  |
| 2 | Time needed for two workers to do a job together (group work) (given individual capacities) | -(given-individual-capacities)-237s.png) |
| 3 | n-th square pyramidal number or pyramid number |  |
| 4 | n-th term of arithmetic progression (AP) or arithmetic sequence (given common difference) | -or-arithmetic-sequence-(given-common-difference)-239s.png) |
| 5 | Initial term of arithmetic progression or arithmetic sequence (given n-th term and common difference) | -240s.png) |
| 6 | Common difference of arithmetic progression or arithmetic sequence (given first and n-th terms) | -241s.png) |
| 7 | Arithmetic series (given initial term,n-th term,arithmetic progression,arithmetic sequence) | -242s.png) |
| 8 | Arithmetic series (given initial term,common difference,arithmetic progression,arithmetic sequence) | -243s.png) |
| 9 | Initial term of arithmetic progression or arithmetic sequence (given n-th term,arithmetic series) | -244s.png) |
| 10 | Number of terms of arithmetic progression or arithmetic sequence (given terms,arithmetic series) | -245s.png) |
| 11 | n-th term of arithmetic progression or arithmetic sequence (given arithmetic series,first term) | -246s.png) |
| 12 | Initial term of arithmetic progression,arithmetic sequence (given common difference,arithmetic series) | -247s.png) |
| 13 | Common difference of arithmetic progression,arithmetic sequence (given initial term and arithmetic series) | -248s.png) |
| 14 | Sum of the first n cubes |  |
| 15 | Factorial of a non-negative integer n |  |
| 16 | nth root of a positive real number |  |
| 17 | Logarithm of a positive real number x with respect to base b |  |
| 18 | Common logarithm of a positive real number |  |
| 19 | n-th term of arithmtic series (given n, m-th term and initial term) | -598s.png) |
| 20 | Common difference of arithmtic progression(given m,n, m-th and n-th terms) | -599s.png) |
| 21 | Natural exponential function |  |
| 22 | The determinant of a 2-by-2 matrix |  |
| 23 | The determinant of a 3-by-3 matrix |  |
