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In Delta ABC , if A = 3C " then " (a...

In ` Delta ABC , if A = 3C " then " (a-c)/( 2c ) = `

A

`"sin"(B)/(2)`

B

`"sin"(C)/(2)`

C

`"cos"(B)/(2)`

D

`"cos"(C)/(2)`

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A
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  6. In triangle ABC, a, b, c are the lengths of its sides and A, B C are t...

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  8. In a triangle ABC if "cot"(A)/(2)"cot"(B)/(2)=c, "cot"(C)/(2)=a and "c...

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  10. If a:b:c: =3:5:5 then "cot"(A)/(2)":cot"(B)/(2):"cot"(C)/(2)=

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  11. In a DeltaABC,(a+b+c)(b+c-a)=lambdabc, then

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  13. In DeltaABC if a=(b-c)Sec theta then (2sqrt(bc))/(b-c)"Sin"(A)/(2)=

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  14. Statement -I : In Delta ABC , b cos ^(2) "" ( C)/(2) + c cos ^(2) ""...

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  15. In Delta ABC, if B=90^@ then tan""A/2=

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  18. In a triangle ABC=(1)/((a-b)(a-c))tan A//2+(1)/((b-c)(b-a))tanB//2+(1)...

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  19. A triangular park is enclosed on two sides by a fence and on the third...

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  20. If the hypotenuse of a right angled triangle is four times the length ...

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