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Prove that: ("sin"(B-C))/(cosBcosC)+("si...

Prove that: `("sin"(B-C))/(cosBcosC)+("sin"(C-A))/(cosCcosA)+("sin"(A-B))/(cosAcosB)=0`

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Prove that (sin(B-C))/(cosB cosC)+(sin(C-A))/(cosC cosA)+(sin(A-B))/(cosA cosB) =0 .

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Knowledge Check

  • For any angles A,B,C. (sin(A-B))/(cosA.cosB)+(sin(B-C))/(cosB.cosC)+(sin(C-A))/(cosC.cosA)=...

    A
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    B
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    C
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    D
    none of these

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