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In triangle A B C ,(sinA+sinB+sinC)/(sin...

In triangle `A B C ,(sinA+sinB+sinC)/(sinA+sinB-sinC)` is equal to `tanA/2cotB/2` (b) `cotA/2tanB/2` `cotA/2cotB/2` (d) `tanA/2tanB/2`

A

`tan"" ( A)/( 2) cot "" (B )/( 2)`

B

`cot"" ( A )/( 2) tan"" ( B )/( 2)`

C

`cot"" ( A)/( 2) cot "" ( B)/( 2)`

D

`tan"" ( A)/( 2) tan"" (B)/( 2)`

Text Solution

Verified by Experts

The correct Answer is:
C
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ML KHANNA-TRIGONOMETRY RATIOS AND IDENTITIES-PROBLEM SET (6) ( MULTIPLE CHOICE QUESTIONS)
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  15. If A+B+C=pi , prove that : sin^2, A/2 + sin^2, B/2 -sin^2, C/2 =1-2 co...

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  16. If : cos^(2) A + cos^(2) B + cos^(2) C = 1, "then" : Delta ABC is

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