Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
If
∣
x
1
∣
>
∣
y
1
∣
+
∣
z
1
∣
,
∣
y
2
∣
>
∣
x
2
∣
+
∣
z
2
∣
,
∣
z
3
∣
>
∣
x
3
∣
+
∣
y
3
∣
|x_1| > |y_1| + |z_1|, |y_2| > |x_2| + |z_2|, |z_3| > |x_3| + |y_3|
∣
x
1
∣
>
∣
y
1
∣
+
∣
z
1
∣
,
∣
y
2
∣
>
∣
x
2
∣
+
∣
z
2
∣
,
∣
z
3
∣
>
∣
x
3
∣
+
∣
y
3
∣
, then
x
1
i
^
+
y
1
j
^
+
z
1
k
^
,
x
2
i
^
+
y
2
j
^
+
z
2
k
^
x_1\hat{i} + y_1\hat{j} + z_1\hat{k}, x_2\hat{i} + y_2\hat{j} + z_2\hat{k}
x
1
i
^
+
y
1
j
^
+
z
1
k
^
,
x
2
i
^
+
y
2
j
^
+
z
2
k
^
and
x
3
i
^
+
y
3
j
^
+
z
3
k
^
x_3\hat{i} + y_3\hat{j} + z_3\hat{k}
x
3
i
^
+
y
3
j
^
+
z
3
k
^
are a. perpendicular b. collinear c. coplanar d. non-coplanar
Browse the problem library