Sequences trial and improvement

Sequences trial and improvement

1. The nth term

   • helps to find a number in a sequnces
   • it substitues the place of the number of the place you want to find
   • it is a rule
   • T(1) = first number of the sequence
   • the nth term rule for an arithmetic is 'T(N)=dn+T(0)
     • D= common difference
     • T(0) is the zero-th term
       • (the number you would place infront of the sequence so it follows the sequence

2. Sequences

   • Triangular numbers
     • 1,3,6,10,15,21,28,36,45,55,,
     • nth term rule= 1/2n(n+1)
   • timestables
     • include all times tables