Find the 9th term from the end (towards the first term) of the AP 5,9,13,.....,185.
Answers
Answered by
17
a = 5
d = 4
L = 185
L9 = L - 8d
= 185 - 8*4
= 185 - 32
= 153
d = 4
L = 185
L9 = L - 8d
= 185 - 8*4
= 185 - 32
= 153
Answered by
11
rearrange the ap in descending order i.e begin from 185
now
a=185
D=-4
a9=a+8d
a9=185-32
a9=153
now
a=185
D=-4
a9=a+8d
a9=185-32
a9=153
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