The nth term of A. P. 5,2,-1,-4,-7......is
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GIVEN :
The nth term of A. P. 5,2,-1,-4,-7......is
TO FIND :
The nth term of A. P. 5,2,-1,-4,-7......is
SOLUTION :
Given sequence A. P is 5,2,-1,-4,-7...
Let , , ,....
Common difference
d=2-5
⇒ d = -3
d=-1-2
⇒ d = -3
∴ Common difference is d=-3
The formula for nth term of the sequence AP is given by :
[tex]a_n= 5+(n-1)(-3) [/tex]
= 5-3n+3.
= 8-3n
[tex]a_n =8-3n [/tex]
∴ the nth term of the given Sequence AP 5,2,-1,-4,-7..... is [tex]a_n =8-3n [/tex]
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