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If two parallel chords of a circle, having diameter 4 units, lie on the opposite sides of the centreand subtend angles `cos^-1(1/7) and sec^-1(7)` at the centre respectively, then the distance betweenthese chords, is: (a) `4/sqrt7` (b) `8/sqrt7` (c) `8/7` (d) `16/7`

A

`( 16)/( 7)`

B

` ( 8)/( sqrt(7))`

C

`(8)/( 7)`

D

`(4)/(sqrt(7))`

Text Solution

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The correct Answer is:
B
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