Question

Find the 27th term of the following A.P. 9,-1,-6,-11

Answer 1

Answer:

Here's your answer

▶a =9 , d =-1-9 =-10

$a 27th = a + 26d \\ \\ = 9 + 260 \\ \\ = 269$

Hope it helps ❗

Answer 2

Answer:

The given sequence is 9, 4, –1, –6, –11,...

Here,

First term (a) = 9

Common difference (d) = a2 – a1 = 4 – (9) = –5

Now,

a27=a+(n−1)d    

=9+(27−1)(−5)    

=9+(26)(−5)      

=−121

Hence, the 27th term of the progression is –121.

Step-by-step explanation: