" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
Kategori soal : matematikaKelas : 9 SMP
Materi : trigonometri
Kata kunci : cosinus
Pembahasan : Himpunan penyelesaiannya adalah 90°. Perhitungan terlampir