The number of vectors that are apex and a unit length for the vectors a =(1, 1, 0)and b=(0, 1, 1)
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Answer:
B
2
let the vector be a
i
^
+b
j
^
+c
k
^
a(1)+b(1)+c(0)=0
a(0)+b(1)+c(1)=0
a
2
+b
2
+c
2
=1
a
2
+(−a)
2
+(a)
2
=1
2
3a
2
=1
a=±
3
1
there are two vectors
v
1
=
3
i
^
−
j
^
+
k
^
;
v
2
=
3
−i
^
−
j
^
−
k
^
Step-by-step explanation:
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