CBSE BOARD X, asked by economic8054, 11 months ago

Find the 10 term from the last term of the A.P 3,8,13---------253

Answers

Answered by vishalkumar515
0

you can use this formula

Attachments:
Answered by tanmoyvestige
0

Solution:

a = 3, d = 5

we have to find from end then write the AP from end

253, 248, 243, ......., 3

For this AP

a= 253

d = 248-253 =-5

an=a+ (n-1)d

a10=253+(10-1)(-5)

a10=253+9(-5)

a10=253-45

a10=208

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