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In a triangle ABC, if A=pi/4, and tanBta...

In a triangle ABC, if A=`pi/4,` and tanBtanC=k,then k must satisfy

A

`k^2-6k+1le0`

B

`k^2-6k+1=0`

C

`k^2-6k+1ge 0`

D

`3-2sqrt2ltklt3+2sqrt2`

Text Solution

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The correct Answer is:
C
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