Question

Find the thirtieth term of the following sequence.

-6, -4, -2, 0, ...

52
64
66

Answer 1

the answer to the question is 52

Answer 2

The thirtieth term of sequence is 52

Explanation:

Given the A.P series

-6, -4, -2, 0, ...

we have to find the thirtieth term of the following sequence.

The A.P is -6, -4, -2, 0, ...

which implies

Common difference, d=-4-(-6)=-4+6=2

First term=a=-6

n=30

`a_n=a+(n-1)d`

`a_(30)=a+29d`

`a_(30)=-6+29(2)=-6+58=52`

hence, the thirtieth term of sequence is 52