Question

ANOWEN QUESTIONS
[4 marks
1. The sum of the 4th and 8th term of an AP is 24 and the sum of the 6th and 10th term is 44. Fin
the first three terms of the AP.
Sol. We have, + ag = 24
(4_1 + 118 11
[NCERT
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Answer 1

Answer:

First 3 terms = -13, -8, -3

Step-by-step explanation:

a+3d + a+7d=24 and a+5d + a+9d=44      

2a+10d=24----------> (i)                      

2a+14d=44--------->(ii)

Subtracting (i) from (ii),

2a+14d-2a-10d=44-24

4d=20

d=5

so, using d in (i)

2a + 50 = 24

2a= -26                                      

a= -13

 

First 3 terms = -13, -8, -3

Answer 2

See the above attached attachment.........!

Hope you got your answer..!

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