Penjelasan dengan langkah-langkah:
a = (2,3,-4)
b = (1,-3,5)
|a| = √2²+3²+(-4)²
= √4+9+16
= √29
|b| = √1²+(-3)²+5²
= √1+9+25
= √35
a.b = 2.1 + 3(-3)+(-4)5
= 2-9-20
= -27
cos ab = a.b / |a| |b|
= -27 / √35.√29
ab = 148 deg
proyeksi = a.b / |b|
= -27 / √35
Jawab:proyeksi a ke b adalah b-a
1-2=-1
-3-3=-6
5-(-4)=9
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Penjelasan dengan langkah-langkah:
a = (2,3,-4)
b = (1,-3,5)
|a| = √2²+3²+(-4)²
= √4+9+16
= √29
|b| = √1²+(-3)²+5²
= √1+9+25
= √35
a.b = 2.1 + 3(-3)+(-4)5
= 2-9-20
= -27
cos ab = a.b / |a| |b|
= -27 / √35.√29
ab = 148 deg
proyeksi = a.b / |b|
= -27 / √35
Jawab:proyeksi a ke b adalah b-a
1-2=-1
-3-3=-6
5-(-4)=9
Penjelasan dengan langkah-langkah: