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Write the next four terms of given ap
a+b, a-b, a-3b
With explanation ​

User Noy Gafni
by
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2 Answers

7 votes

ANSWER

In the given progression is a+b,a−b,a−3b,......, the first term a1=a+b, second term a2=a−b and third term a3=a−3b. So, the difference between the two terms of the given progression is:

d=a2−a1=a−b−(a+b)=a−b−a−b=−2b

Therefore, the next four terms of the arithmetic progression are:

a4=a3−2b=a−3b−2b=a−5b

a5=a4−2b=a−5b−2b=a−7b

a6=a5−2b=a−7b−2b=a−9b

a7=a6−2b=a−9b−2b=a−11b

Hence, the next four terms are a−5b,a−7b,a−9b,a−11b.

Hope it helps.

User Nikolay Mihaylov
by
7.4k points
1 vote

Answer :

c.d =

a -5b - a +3b = -2b

c.d =

a - b - a -b = -2b

c.d =

a -3b -a +b = -2b

so the answer is a-5b,a-7b ,a-9b,a-11b .

hope you understand ♤♤♤♤♤♤

User Richard Jordan
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7.2k points