Question
For the following arithmetic progressions write the first term a and the common difference $d:
-5, -1, 3, 7, ....$
-5, -1, 3, 7, ....$
✓
Answer
A.P. is, $-5, -1, 3, 7, .......$
Here,
First term$ a = -5$
Common difference,
$ a_1-a=-1-(-5)=4 $
$ a_2-a_1=3-(-1)=4 $
$d = 4$
Therefore $a = -5$ and $d = 4.$
Here,
First term$ a = -5$
Common difference,
$ a_1-a=-1-(-5)=4 $
$ a_2-a_1=3-(-1)=4 $
$d = 4$
Therefore $a = -5$ and $d = 4.$
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