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In a Delta ABC, If tan .(A)/(2)=(5)/(6)...

In a `Delta ABC, ` If `tan .(A)/(2)=(5)/(6) and tan .(B)/(2) =(20)/(37)`, then show that ` tan ((C)/(2))=(2)/(5)`

A

`b^2=ac`

B

`2b=a+c`

C

`2ac=b(a+c)`

D

`a+b=c`

Text Solution

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The correct Answer is:
B
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