Jika |a| = 8, |b| = 4, dan ∠(a,b) = 135° Tentukan |a+b| and |a-b|
Penjelasan dengan langkah-langkah:
45% x a = 135
a = 135 : 45%
= 135 x 100/45
= 300
3/8 x b = 21
b = 21 x 8/3
= 56
a + b = 356
maaf kalo salah
Jika |a| = 8, |b| = 4, dan ∠(a,b) = 135° Tentukan |a+b| and |a-b|
Penjelasan dengan langkah-langkah:
45% x a = 135
a = 135 : 45%
= 135 x 100/45
= 300
3/8 x b = 21
b = 21 x 8/3
= 56
a + b = 356
maaf kalo salah