Answers

  • Brainly User
2016-07-08T12:01:01+08:00
Arithmetic Sequence.  

The common difference is 5.

a₂ - a₁  = (5+√5) - (√5) = 5
a₃ - a₂  = (10+ √5) - (5+√5) = 5
a₄
- a₃  = (15+√5) - (10+√5) = 5
1 4 1
how about this?x,3x,5x,7x,9x,... is it arithmetic or geometric
how about this? x,3x,5x,7x,9x,... is it arithmetic or geometric sequence
Arithmetic. The common difference is 2x.