if the first term of an A.P is -25 and 8th term is 17,what is the common difference
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Answer:
a= -25
a+7d=17
Put a= -25
-25+7d=17
7d=17+25
7d=42
d=42/7
d = 6
Step-by-step explanation:
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The common difference between the AP is 6.
Given:-
The first term of an AP = -25
Number of terms = 8
Eighth term of an AP = 17
To Find:-
The common difference between the AP.
Solution:-
We can simply calculate the common difference of the AP by using the following procedure.
As
The first term of an AP (a) = -25
Number of terms (n) = 8
Eighth term of an AP (an) = 17
Common difference (d) =?
According to the formula of Arithmetic Progression,
On putting the values, We get
Hence, The common difference between the AP is 6.
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