Question

Find the 56th term if A1=23 and the cd=-7

Answer 1

Salutations!

finding the 56th term is same as find the nth term, but its a bit more easier than finding the nth term.

we'll be using a formula to find the fifth term.


`a+(n-1)*d`


`a` stands for the first term (the first number in a sequence)


`d` is the difference between the constants


`n` is the what will be finding

so instead of n, we will be plugging in the number 56.


`a+(n-1)*d`


`23+(56-1)*-7`

we will be solving the brackets first


`23+55*-7`


`78-7`

=71

the 56th term is 71

hope this helps!

have a great day!