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In Delta ABC if a: b: c = 7 : 8: 9 , t...

In ` Delta ABC if a: b: c = 7 : 8: 9 , then cos A : cos B : cos C = `

A

`7:9:11`

B

`14:11: 6`

C

` 7: 19: 25`

D

`8: 6: 5`

Text Solution

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The correct Answer is:
B
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