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Question

If a, b, c are in A.P., then the following are also in A.P.
a(1b+1c),b(1c+1a),c(1a+1b).

A
True
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B
False
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Solution

The correct option is A True
We have,
a,b,c are in A.P

aabc,babc,cabc are in A.P

1bc,1ca,1ab are in A.P

ab+bc+cabc,ab+bc+caca,ab+bc+caab are also in A.P

ab+bc+cabc1,ab+bc+caca1,ab+bc+caab1 are also in A.P

ab+cabc,ab+bcca,bc+caab are also in A.P

a(b+c)bc,b(c+a)ca,c(a+b)ab are also in A.P

a(1b+1c),b(1c+1a),c(1a+1b) are also in A.P


Hence, this is the answer.

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