Matematika

Pertanyaan

diketahui cos alpha = 2/3 tentukan nilai perbandingan berikut
a.sin alpha
b.tangen alpha
c.cosecan alpha
d.secan alpha
e.cotangen alpha

1 Jawaban

  • Sin alpha = depan/miring = ✓5 / 3
    tan alpha = depan/samping = ✓5 / 2
    cosec = 1/sin = 3/✓5 = 3/5 ✓5
    sec = 1/cos = 3/2
    cot = 2/✓5 = 2/5 ✓5
    Gambar lampiran jawaban elmerfiqi

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