Math Problem Statement
Given that | vec a |=1 , | vec b |= sqrt(3) and that overline a and vec b are perpendicular, evaluat (a) |( vec a + vec b )( vec a - vec b )| (b) |(2 vec a + vec b )( vec a -2 vec b )|
Solution
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Math Problem Analysis
Mathematical Concepts
Vectors
Dot product
Perpendicular vectors
Formulas
Dot product formula: \( \vec{a} \cdot \vec{b} = |\vec{a}| |\vec{b}| \cos \theta \)
Theorems
-
Suitable Grade Level
High school
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