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In this lesson, we will learn how to use the dot product to find the magnitude of a vector.
Q1:
If π΄ π΅ πΆ is an equilateral triangle of side 4.75, find ο π΄ π΅ β ο π΄ πΆ approximated to the nearest hundredth.
Q2:
For the unit vectors , , , what is ?
Q3:
If π΄ π΅ πΆ is an equilateral triangle of side length 29.9 cm, find ο π΄ π΅ β οΊ ο π΄ πΆ + ο πΆ π΅ ο .
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