Matematika

Pertanyaan

Cos 300°+sin-210°+tan 225°=…

1 Jawaban

  • cos300° + sin(-210°) + tan 225°
    = cos(360-60) - sin(180+30) + tan(180+45)
    = cos60 + sin30 + tan45
    = 1/2 + 1/2 + 1
    = 2

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