Question

if a,b,c are in hp then what will be the H.M​

Answer 1

a, b, c are in HP

Then

a

1

,

b

1

,

c

1

are in AP

⇒

c

1

−

b

1

−

b

1

−

a

1

⇒

bc

b−c

=

ab

a−b

⇒

bc

ab

=

b−c

a−b

⇒

b−c

a−b

=

c

a

.

Step-by-step explanation:

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