koordinat titik p(akar 24 - 2 akar 2) jika diubah koordinat polar menjadi

jawab
P (x,y) = (√24, - 2√2)
r²= x² +y²
r² = (√24)² + (-2√2)² = 24 + 8 = 32
r = √32 = 4√2

sin  a = y/r = -2√2 / 4√2 = -1/2 = - sin 30
a = 180 + 30
a = 210
P(r, a) → P(4√2, a= 210}