Given a = 2i+j – 2k
b= -1 – 7j+k
Find a x b
1 answer:
Step-by-step explanation:
a = 2i + j - k
b = -1 -7j + k
a × b = (2i + j - k) (-1 + 7j + k)
-2i + 14ij + 2ik - j + 7j^2 + jk + k -7jk - k^2
-2i + 14ij + 2ik -j +7j^2 +jk - 7jk + k - k^2
-2i + 14ij + 2ik - j +7j^2 - 6jk + k - k^2
You might be interested in
Answer:
let mother's age y and daughter age x
a/q y=3x and y-5=5x-25
put y in second eq we get x=10 &y=30(their present age)
Answer:40934
Step-by-step explanation:
calculator
The answer would be option 1, mass divided by volume
It is 27, 783. Hope this helps
