Matematika

Pertanyaan

Sin p/ 1+ cos p + 1+ cos P/ sin p = 2 cosec p

1 Jawaban

  • sinx / 1+cosx + 1+cosx / sinx = 2cscx
    sin²x + (1+cosx)² / sinx (1 + cosx) = 2cscx
    sin²x + 1 + 2cosx + cos²x / sinx (1+cosx) = 2cscx
    1 + 1 + 2cosx / sinx (1 + cosx) = 2cscx
    2 + 2cosx / sinx (1 + cosx) = 2cscx
    2 (1 + cosx) / sinx (1 + cosx) = 2cscx
    2 ( 1 / sinx ) = 2csc x
    2csc x = 2csc x

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