Question

if 4/5,a,2 are in AP ,find the value of a​

Answer 1

Answer:

Step-by-step explanation:Middle term is arithmetic mean of AP.

Arithmetic mean is also (a + l)/2

= (4/5 + 2)/2 = 7/5

=> a = 7/5

Answer 2

Answer:

In an ap, a2-a1=a3-a2

a-4/5=2-a

2a=2 +4/5

2a=(10+4)/5

a=7/5 or 1 2/5

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