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The angle of a triangle ABC are in an ar...

The angle of a triangle ABC are in an arithmetic progression . The larger sides a,b satisfy the relation ` (sqrt(3))/(2) lt (b)/(a) lt 1 .` then the possible values of the smallest side are

A

`(apmsqrt(ab^(2)-3a^(2)))/(2a)`

B

`(apmsqrt(4b^(2)-3a^(2)))/(2b)`

C

`(apmsqrt(4b^(2)-3a^(2)))/(2c)`

D

`(apmsqrt(4b^(2)-3a^(2)))/(2)`

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