Enrich · Mathematics Extension 1 11–12 – Year 12 · Introduction to vectors
Enrich Verify the equivalence of a⋅b = (a)(b)cosθ with the algebraic definition of the scalar product, a⋅b = x_1x_2 + y_1y_2 for two dimensions and a⋅b = x_1x_2 + y_1y_2 + z_1z_2 for three dimensions
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