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(-5 , 12)
r² = x² + y²
r² = (-5)² + 12²
r² = 25 + 144
r² = 169
r = √169
r = 13
b.
(6 , 8)
r² = x² + y²
r² = 6² + 8²
r² = 36 + 64
r² = 100
r = √100
r = 10
c.
(24 , -7)
r² = x² + y²
r² = 24² + (-7)²
r² = 576 + 49
r² = 625
r = √625
r = 25
d.
(-15 , -8)
r² = x² + y²
r² = (-15)² + (-8)²
r² = 225 + 64
r² = 289
r = √289
r = 17
untuk nilai perbandingan trigonometrinya itu sendiri:
sin α = y/r
cos α = x/r
tan α = y/x
cosec α = r/y
sec α = r/x
cotan α = x/y
silahkan masukkan sendiri, kan x, y, dan r nya udah diketahui :)
minta jadiin solusi terbaik aja aku :p