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In any triangle A B C , prove that follo...

In any triangle `A B C` , prove that following :`(a+b)/c=(cos((A-B)/2))/(sin(C/2))`

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RD SHARMA ENGLISH-SINE AND COSINE FORMULAE AND THEIR APPLICATIONS-All Questions
  1. In any triangle A B C , prove that following : c/(a-b)=(tan(A/2)+tan(B...

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  2. In any triangle A B C , prove that following : c/(a+b)=(1-tan(A/2)tan(...

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  3. In any triangle A B C , prove that following :(a+b)/c=(cos((A-B)/2))/(...

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  4. In any triangle A B C , prove that following: sin((B-C)/2)=(b-c)/a cos...

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  5. In any triangle A B C , prove that following: (a^2-c^2)/(b^2)=("sin"(A...

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  6. In any triangle A B C , prove that following: \ bsinB-csinC=asin(B-C)

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  7. In any triangle A B C , prove that following: \ \ a^2sin(B-C)=(b^2-c^2...

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  8. In any triangle A B C , prove that following: \ a(sin B-sin C)+b( sin ...

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  9. In any triangle A B C , prove that following: \ (a^2"sin"(B-C))/(sin A...

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  10. In any triangle A B C , prove that following: \ \ bcosB+c\ cos\ C="a c...

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  11. In any triangle A B C , prove that following: \ (cos^2B-cos^2C)/(b+c)+...

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  12. In any triangle A B C , prove that following: \ \ asin(A/2)sin((B-C)/2...

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  13. In any triangle A B C , prove that following: \ \ acosA+bcosB+c\ cos C...

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  14. In any triangle A B C , prove that following: \ a\ (cosB cos C+cos A)=...

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  15. In a Delta A B C ,\ ifsin^2A+sin^2B=sin^2C , show that the triangle i...

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  16. The upper part of a tree broken over by the wind makes an angle of 30^...

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  17. If the sides of a DeltaA B C\ are a=4,\ b=6\ a n d\ c=8, show that 4...

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  18. In any Delta A B C , prove that: a(b\ cos C-c cosB)=b^2-c^2

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  19. In any Delta A B C , prove that: (cos A)/a+(cos B)/b+(cos C)/c=(a^2+b...

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  20. In any Delta A B C , prove that: 2(bc cosA+cacosB+a bcosC)=a^2+b^2+c^...

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