Please solve the questions
Attachments:
Answers
Answered by
1
Answer:
Step-by-step explanation:
a+3d+a+7d=24
a+5d+a+9d=44
2a+10d=24--------1
2a+14d=44---------2
4d=20
By subtracting 1&2
d=5
Plzzzz mark brainleist
Answered by
2
Step-by-step explanation:
As we know that,
a n = a + (n − 1) d
a 4 = a + (4 − 1) d
a 4 = a + 3d
Similarly,
a 8 = a + 7d
a 6 = a + 5d
a 10 = a + 9d
Sum of 4th and 8th term = 24 (Given)
a 4 + a 8 = 24
a + 3d + a + 7d = 24
2a + 10d = 24
a + 5d = 12.................... (i)
Sum of 6th and 10th term = 44 (Given)
a 6 + a 10 = 44
a + 5d + a + 9d = 44
2a + 14d = 44
a + 7d = 22 ......................(ii)
Solving (i) and (ii), we get,
From equation (i), we get,
a + 5d = 12
a + 5 (5) = 12
a + 25 = 12
a = −13
a 2 = a + d = − 13 + 5 = −8
a 3 = a 2 + d = − 8 + 5 = −3. Hope it helps you.
Similar questions