Concept explainers
Rotations If a point
a. If the point
b. Multiplication by what matrix would result in a counterclockwise rotation of 90°? 135°? (Express the matrices in terms of R.) [HinT: Think of a rotation through 90° as two successive rotations through 45°.]
c. Multiplication by what matrix would result in a clockwise rotation of 45°?
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Chapter 4 Solutions
Bundle: Finite Mathematics, Loose-leaf Version, 7th + WebAssign Printed Access Card for Waner/Costenoble's Finite Mathematics, 7th Edition, Single-Term
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