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If tan.(C-A)/(2)=k cot.(B)/(2) then find...

If `tan.(C-A)/(2)=k cot.(B)/(2)` then find k .

A

`(c-a)/(c+a)`

B

`(b+a)/(b-a)`

C

`(b-c)/(b+c)`

D

`(c-a)/(b+a)`

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A
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DIPTI PUBLICATION ( AP EAMET)-PROPERTIES OF TRIANGLES -EXERCISE 1A
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  4. In Delta ABC, if tan""A/2=t cot ((B-C)/2), then t=

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  12. In Delta ABC, if tan""A/2=5/6, tan""C/2=2/5 then

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  19. In Delta ABC, if C=A-B=60^@, then the value of (a-b)/c=

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  20. In Delta ABC, if A=60^@ then b/(c+a)+c/(a+b)=

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