What is the 12th term of the sequence 5, 12, 19....?
The Sequence equation is: Tn=7n-2
N=Which term( 1st,2nd,3rd)
the sequence is going up in seven's and you wouldn't want to start with 7 for the equation so how do you get from 7 to 5? Subtract 2.
Then for a term you're trying to find just add it into the sequence equation. Practice this!
We observe that difference between first and second terms
Similarly difference between second and third terms
It shows that the given sequence of numbers is an arithmetic progression with common difference equal to
We know that
To find the