Question

-1,+4,-9,+16,...
Write down an expression, in terms of n, for the nth term of the sequence.

Answer 1

Answer:

a=(-1)

d=a1-a=

=4-(-1)

=4+1

=5

an=?

n=?

Step-by-step explanation:

since we know that

an=a+(n-1)d. [now put all the given value]

an=(-1)+(n-1)5

that is ur answer

hope it will help u

Answer 2

Answer:

tfxhbdyiuthffvb ddfghhhddgvfghjkcxsdvvgayujhvfcvsgjbfu