If A (3, 2, 1), B(4, x, 5), C(4, 2, -2), D(6, 5, -1) are coplanar, find x.
Answers
Answered by
1
Answer:
-1
Step-by-step explanation:
-1 is right answer
please follow me
Answered by
1
Answer:
answer is 5
as
det of ab,ac,ad°=o
where ab=ob-oa
as like this do for ac,ad
Similar questions