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In Delta ABC, if cot""A/2: cot""B/2:cot ...

In `Delta ABC, if cot""A/2: cot""B/2:cot ""C/2=1:4:15`, then the greatest angle of the triangle is

A

`60^@`

B

`90^@`

C

`120^@`

D

`135^@`

Text Solution

Verified by Experts

The correct Answer is:
C
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