100 Things Every Designer Needs to Know About People (Voices That Matter)

100 Things Every Designer Needs to Know About People (Voices That Matter)

Matematika Tolong di bantu kak Saya ndak bisa​

Tolong di bantu kak Saya ndak bisa​

Jawaban:

diketahui:

• vektor posisi a = (0, 2)

• vektor posisi b = (3, 0)

• sudut antara a . b = 90°

• nilai dari a . b = ... ???

mencari panjang vektor, |a| dan |b|

a . b = |a| . |b| cos θ

a . b = √0² + 2² . √3² + 0² . cos 90°

a . b = 2 . 3 . 0

a . b = 0

karena hasil a . b = 0 berarti vektor a dan b saling tegak lurus

Penjelasan dengan langkah-langkah:

semoga membantu ya. mohon koreksinya juga. cmiiw :)

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