pc 6.3 notes_vectors
DESCRIPTION
A look at vectors.TRANSCRIPT
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6.3 Vectors in a Plane
Objective: 1) Perform operations with vectors, both graphically and algebraically.2) Apply vectors in real-life situations.
Standard: Linear Algebra 7.0
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What's a Vector?
_____________
_____________
It's got _________ and _____________!Terminal – Initial
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Ways to represent vectors:Component Form:
Linear Form:
Trigonometric Form:
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On the Moodle Discussions:Don't use < and > for vectors. Use LaTeX.
$$\langle{-3,5}\rangle$$
$$\|v\|$$
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Finding a vector:Ex. 1) Find the component form and magnitude of the vector v that has an initial point of (–2, 3) and terminal point (–7, 9).
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Ex. 2) Let u be the vector with initial point (–2, 6) and terminal point (–8, 3). Write u as a linear combination of the standard unit vectors i and j.
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Vector Operations:Ex. 3) Find the following if …a) u–v
b) 3v–2u
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Graphing Vectors:Ex. 3b) Graph the following if …a) u+v
b) 3v–2u
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Ex. 4) Let u = i + j and v = 5i - 3j. Find 3u - 2v.
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Direction AnglesEx. 5) Find the direction angle.a) -6i+6j
b)
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Trigonometric FormJust like _____, ______, and ______ can be used to represent a location on a plane, also _____, _____, and _____________ can be used in the same way.
Ex. 6) Write in trig form.
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Assignment:
#8 p. 456 #3-13 (odd), 21-33 (odd), 45-66 (mult. of 3)