Math, asked by SARTHAK1001, 1 year ago

What will be the values of S8-a4 for the following A.P 4,9,14.........,254.

Answers

Answered by Hasti152002
2
A=4 d=9-4=5
S8=8/2(2(4)+(7)(5))
=4(8+35)
=4*43
=172

Now t4=4+3(5)=4+15=19

According to question,
S8-t4=172-19
=153

Hope it helps you dear.....
Answered by Adi470
1
S8-A4 = 172-19=153
Answer is 153
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