GTekno Informasi teknologi, Belajar tentang teknologi, berita teknologi, berita teknoAdalah Jawaban Soal Pelajaran Tentang Nilai dari sin 225 adalah
Kelas : X (1 SMA)
Materi : Trigonometri
Kata Kunci : Perbandingan, trigonometri, sudut, derajat
Pembahasan :
Dalam trigonometri, besar sudut α dibagi menjadi
4 kelompok, yaitu :
Kuadran I : 0° < α < 90° (0
< α < π/2)
sin (90° – α) = cos α
cos (90° – α) = sin α
tan (90° – α) = cotan α
cotan (90° – α) = tan α
secan (90° – α) = sec α
sec (90° – α) = cosec α
cos (360° – α) = cos (-α) = cos α
tan (360° – α) = tan (-α) = -tan α
cotan (360° – α) = cotan (-α) =
-cotan α
secan (360° – α) = secan (-α) = -secan α
sec (360° – α) = sec (-α) = sec α
sin 225° = sin (270 – 45)° = -cos 45° = –
Materi : Trigonometri
Kata Kunci : Perbandingan, trigonometri, sudut, derajat
Pembahasan :
Dalam trigonometri, besar sudut α dibagi menjadi
4 kelompok, yaitu :
Kuadran I : 0° < α < 90° (0
< α < π/2)
sin (90° – α) = cos α
cos (90° – α) = sin α
tan (90° – α) = cotan α
cotan (90° – α) = tan α
secan (90° – α) = sec α
sec (90° – α) = cosec α
Kuadran II : 90° < α < 180° (π/2
< α < π)
sin (180° – α) = sin α
cos (180° – α) = -cos α
tan (180° – α) = -tan α
cotan (180° – α) = -cotan α
secan (180° – α) = secan α
sec (180° – α) = -sec α
Kuadran III : 180° < α < 270° (π
< α < 3π/2)
sin (270° – α) = -cos α
cos (270° – α) = -sin α
tan (270° – α) = cotan α
cotan (270° – α) = tan α
secan (270° – α) = -sec α
sec (270° – α) = -cosec α
Kuadran IV : 270° < α < 360° (3π/2
< α < 2π)
sin (360° – α) =
cos (360° – α) = cos (-α) = cos α
tan (360° – α) = tan (-α) = -tan α
cotan (360° – α) = cotan (-α) =
-cotan α
secan (360° – α) = secan (-α) = -secan α
sec (360° – α) = sec (-α) = sec α
Mari kita lihat soal berikut.
sin 225
sin 225° = sin (270 – 45)° = -cos 45° = –
Semangat!
Demikianlah Kunci Jawaban Soal Pelajaran Tentang Nilai dari sin 225 adalah Semoga Membantu.