Question

write the general term of the sequence 2,-4,6,-8,10....​

Answer 1

Answer:

We have the terms : 2, 4, 6, 8, 10 .. and so on

Let, T1=2=a ….. (Where a denotes the first term of the series)

T2=4=2∗2=2∗a

T3=6=3∗2=3∗a

T4=8=4∗2=4∗a

Thus we can generalize it as :

Tn=n∗a=2∗n ……..(where n is the nth term of the series)

nth term of 2 4 6 8 10 = Tn=2n

Also we can notice that this is an Arithmetic Progression, whose first term is 2 and common difference is also 2.

Tn=a+(n−1)d . ………. (where, a&d = 2)

Step-by-step explanation:

Mark me as brainliest and follow me...

Answer 2

Answer:

common difference=2

Step-by-step explanation:

t1=2,t2=4,t3=6,t4=8

t2-t1=4-2=2

t3-t2=6-4=2