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The sub-duplicate ratio of (7+4sqrt3): (...

The sub-duplicate ratio of `(7+4sqrt3): (7-4sqrt3)` is

A

`(7 + 4 sqrt3) : 1`

B

`(7 - 4 sqrt3) : 1`

C

`4 sqrt3 : 1 `

D

None of these.

Text Solution

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The correct Answer is:
A
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