Question
Find the 12th term. -8, -5.5 , -3, -0.5, 2.0,....
Hint:
- A sequence is said to be arithmetic if the common difference is always constant.
- The General formula of any AP is
.
.The correct answer is: a_n=a_(n-1)+3.5
Explanation:
- We have given a sequence -8, -5.5, -3, -0.5, 2.0,...
- We have to find weather the given sequence is AP or not
Step 1 of 1:
We have given a sequence -8, -5.5, -3, -0.5, 2.0,...
The given sequence is an AP
And we know the recursive formula of any AP is 
.
Where d is common difference.
Here the common difference is 3.5.
So, The recursive formula is
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