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Question

Question: If *a*, *b*,*c* are in A.P., then \(\frac { 1 } { b c } , \frac { 1 } { c a } , \frac { 1 } { a b }\...

If a, b,c are in A.P., then 1bc,1ca,1ab\frac { 1 } { b c } , \frac { 1 } { c a } , \frac { 1 } { a b } will be in

A

A.P.

B

G.P.

C

H.P.

D

None of these

Answer

A.P.

Explanation

Solution

a, b, c are in A.P., ⇒ 1bc,1ca,1ab\frac { 1 } { b c } , \frac { 1 } { c a } , \frac { 1 } { a b } will be in A.P

[Dividing each term by abc]