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In triangle ABC if A:B:C=1:2:4," then "...

In triangle ABC if `A:B:C=1:2:4," then " (a^(2)-b^(2))(b^(2)-c^(2))(c^(2)-a^(2))=lambda a^(2)b^(2)c^(2)`, where `lambda=`
(where notations have their usual meaning)

A

1

B

2

C

4

D

9

Text Solution

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A
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