A directory of useful objects found on the web for teaching Maths.
define and use basic linear transformations: dilations of the form (x,y)⟶(λ1x,λ2y)(x,y)⟶(λ1x,λ2y), rotations about the origin and reflection in a line which passes through the origin, and the representations of these transformations by 2×22×2 matrices
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