tentukan koordinat cartesius titik P (4,210

Kelas 10 Matematika
Bab Koordinat Kutub

x = r . cos a
x = 4 . cos 210°
x = 4 . (-1/2 √3)
x = -2 √3

y = r . sin a
y = 4 . sin 210°
y = 4 . (-1/2)
y = - 2

(-2 √3, -2)

Mapel : Matematika

Kelas : 10

Bab : Koordinat Kutub
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1] Nilai x

x = r • cos a
x = 4 • cos 210°
x = 4 • ( -1/2 √3)
x = -2 √3

2] Nilai y

y = r • sin a
y = 4 • sin 210°
y = 4 • (-1/2)
y = -2


Jadi, Koordinatnya → (-2√3, -2)