Question

a1 = 5,a4=9 1/2 find a2 and a3

pls answer me soon.....

Answer 1

Answer:

Given that a1 = 5 & a4 = 9.5

a4 = a1 + (4-1)d

9.5 = a1 + 3d

Substituting a1 in above equation

9.5 = 5 + 3d

4.5 = 3d

d = 1.5

now, a2 = a1 + (2-1)d

= 5 + 1.5

= 6.5

a3 = a1 + (3-1)d

= 5 + 2× 1.5

= 8

Step-by-step explanation:

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