tolong bantu aku nge jawab soal mtk yg di buletin aja sebelum nya makasih...

R = akar (5kuadrat + 5 v3 kuadrat )
=akar (25 + 75) = V100 = 10
tan a = -5V3/5 = -V3 kwadran 4
a = 300°
( 10, 300°)
6. x = 8V2 Cox 135
x = 8V2 .- 1/2 V2
x = -8
y = 8V2 sin 135
y = 8V2 . 1/2 V2
y = 8
(-8, 8)