hey
i've got a few maths problems that i cant seem to solve
Sequences and formulae:
find the value of n for which u has the given value in these:
1. u = 2n u = 256 answer: 8
2. u = 3n u = 2187 answer: 7
3. u = n(n-1) u = 380 answer: 20
And then, how to work out the formula for
1. 1/2, 1/3, 1/4
2. 2, 1.5, 1.333333, 1.25
3. 1, 2/3, 3/5, 4/7, 5/9
thanks a lot