Orthogonal unit vectors in ℝ 3 Consider the vectors I = 〈 1 / 2 , 1 / 2 , 1 / 2 〉 , J = 〈 − 1 / 2 , 1 / 2 , 0 〉 , and K = 〈 1 / 2 , 1 / 2 , − 1 / 2 〉 . a. Sketch I , J , and K and show that they are unit vectors. b. Show that I , J , and K are pairwise orthogonal. c. Express the vector 〈1, 0, 0〉 in terms of I , J , and K .
Orthogonal unit vectors in ℝ 3 Consider the vectors I = 〈 1 / 2 , 1 / 2 , 1 / 2 〉 , J = 〈 − 1 / 2 , 1 / 2 , 0 〉 , and K = 〈 1 / 2 , 1 / 2 , − 1 / 2 〉 . a. Sketch I , J , and K and show that they are unit vectors. b. Show that I , J , and K are pairwise orthogonal. c. Express the vector 〈1, 0, 0〉 in terms of I , J , and K .
Solution Summary: The author illustrates how to sketch the vectors I, J, and K using an online graphing calculator.
Orthogonal unit vectors in
ℝ
3
Consider the vectors
I
=
〈
1
/
2
,
1
/
2
,
1
/
2
〉
,
J
=
〈
−
1
/
2
,
1
/
2
,
0
〉
, and
K
=
〈
1
/
2
,
1
/
2
,
−
1
/
2
〉
.
a. Sketch I, J, and K and show that they are unit vectors.
b. Show that I, J, and K are pairwise orthogonal.
c. Express the vector 〈1, 0, 0〉 in terms of I, J, and K.
Quantities that have magnitude and direction but not position. Some examples of vectors are velocity, displacement, acceleration, and force. They are sometimes called Euclidean or spatial vectors.
For the following function f and real number a,
a. find the slope of the tangent line mtan
=
f' (a), and
b. find the equation of the tangent line to f at x = a.
f(x)=
2
=
a = 2
x2
a. Slope:
b. Equation of tangent line: y
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, calculus and related others by exploring similar questions and additional content below.