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In DeltaABC , tan""((A+B)/(2))*tan""(C)/...

In `DeltaABC , tan""((A+B)/(2))*tan""(C)/(2)=`

A

`sin 2A `

B

1

C

`tan 2A`

D

0

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The correct Answer is:
B
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DIPTI PUBLICATION ( AP EAMET)-TRIGONOMETRIC RATIOS AND IDENTITIES -EXERCISE 1 A ( TRIGONOMETRIC FUNCTIONS)
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  4. If A,B,C,D are the angles of a cyclic quadrilateral then sinA+sinB=

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  5. If A,B,C,D are the angles of a cyclic quadrilateral then cos A + cos...

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  12. sin""((pi)/2+ theta ) * cos (pi- theta ) * cot ""((3pi)/(2)+ theta ) -...

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