Diketahui Vektor PQ = 2i + k dan PR = i + j + 2k. Jika PS = 1/2PQ maka vektor RS =? nmr 7 soalnya

PQ = 2i + k
PR = i + j + 2k
PS = 1/2PQ
PS = 1/2(2i + k)
PS = i + 1/2k

PS = i + 1/2 k
PR = i + j + 2k

S - p = i + 1/2 k
R - P = i + j + 2k
------------------------- -
S-R = -j - 3/2 k
RS = - ( j + 3/2k) (A)

semoga bermamfaat ;;)