Question

Tolong di bantu buat besok

Answer 1

Verified answer

Vektor
Kelas X

P , Q , dan R segaris
PQ = n QR
Q - P = n (R - Q)
(1 - 3 , -2 - 2 , 1 + 1) = n(7 - 1 , a - 1 + 2 , -5 - 1)
(-2 , -4 , 2) = n(6 , a + 1 , -6)

Didapat -2 = 6n
n = - ⅓

Maka
-⅓(a + 1) = -4
a + 1 = 12
a = 11