4 sin a = 2, π/2 < α < π
Matematika
indahrs1307
Pertanyaan
4 sin a = 2, π/2 < α < π
1 Jawaban
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1. Jawaban Anonyme
jawab
trigonomteri
4 sin A = 2
sin A = 2/4
sin A = 1/2 = sin 30
dan A di kuadran II
sin 30 = sin(180- 150)
sin 30 = sin 150
A= 150°