Himob
1
The silence of an
AP 13 sguardo 8.13 1819
lenn Tiod the 12 June
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Answer:
Step-by-step explanation:
Solution:-
A.P.→7,10,13,.............,184
First term, (a)=7
common difference, (d)=a
2
−a
1
=10−7=3{∵d=(n+1)
th
term−n
th
term}
As we have to find 8
th
term from the end,
New A.P. →184,181,178,........................7
First term of new A.P. (a
′
)=184
common difference of new A.P., (d
′
)=a
2
−a
1
=181−184=−3
∴a
8
=a+7d{a
n
=a+(n−1)d}
⇒a
8
=184+(7×−3)
⇒a
8
=184−21=163
Hence, 8
th
term from the end of the A.P. 7,10,13,.............,184 is 163.
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