" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Maka,
Solusi 1:
sin x = -1/2
sin x = sin 210⁰
Maka,
x₁ = 210⁰ + k.360, dengan k = 0 didapat x₁ = 210⁰
x₂ = (180-210)⁰ + k.360⁰
x₂ = -30⁰ + k.360⁰, dengan k = 1 didapat x₂ = 330°
Solusi 2:
sin x = 1/2
sin x = sin 30⁰
Maka,
x₁ = 30⁰ + k.360⁰, dengan k = 0 didapat x₁ = 30⁰
x₂ = (180-30)⁰ + k.360⁰
x₂ = 150⁰ + k.360⁰, dengan k = 0 didapat x₂ = 150⁰
Sehingga,
HP = {x | 30⁰, 150⁰, 210⁰, 330⁰}