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In a DeltaABC, tan.(A)/(2)=(5)/(6), tan....

In a `DeltaABC`, `tan.(A)/(2)=(5)/(6)`, `tan.(C)/(2)=(2)/(5)`, then

A

`b^(2)+a c`

B

`2 b=a+c`

C

`2 a c=b(a+c)`

D

`a+b=c`

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HIMALAYA PUBLICATION-MEASUREMENT OF ANGLES, TRIGONOMETRIC RATIOS AND RELATION BETWEEN SIDES AND ANGLES OF A TRIANGLE-QUESTION BANK
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