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For any triangle ABC, prove that (a+b)/c...

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

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MAXIMUM PUBLICATION-MODEL PAPER 20-EXAMPLE
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  9. Solve sin2x-sin4x+sin6x=0

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  10. For any triangle ABC, prove that (a+b)/c=cos((A-B)/2)/sin(C/2)

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  12. In how many way can the letters of the word PERMUTATIONS be arranged i...

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  13. In how many ways can the letters of the word PERMUTATIONS be arranged ...

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  15. Find the equation of the line passing through point (3,8) and perpendi...

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  16. Consider the line x+3y-7=0 Find the image of the point (3,8) with re...

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  17. Find the perpendicular distance from point(3,8) to the line x+3y-7=0

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