IB MAI HL Geometry & Trigonometry Topic 3.5 Geometric Transformations (id: 036f3

本题目来源于试卷: IB MAI HL Geometry & Trigonometry Topic 3.5 Geometric Transformations，类别为 IB数学

[填空题]
A triangle with vertice- f b1g+maqml0c3rhr u+(hx; fs A(3,5), B(5,25v9 g(y8 syhwa) and C(3,2) is rotated ${90}^{\circ }$ anticlockwise about O(0,0) and then reflected in the line y=−x. The rotation is represented by matrix A and reflection by matrix B.
1.Write down the matrix :
(1)A; $\left(\begin{array}{cc}a& b\\ c& d\end{array}\right)$ a =    b =    c =    d =   
(2)B.$\left(\begin{array}{cc}a& b\\ c& d\end{array}\right)$ a =    b =    c =    d =   
2.Find the matrix that represents the rotation followed by the reflection. BA = $\left(\begin{array}{cc}a& b\\ c& d\end{array}\right)$ a =    b =    c =    d =   
3.On the following grid, draw the image of the triangle ABC.

参考答案:
空格1: 0  空格2: -1  空格3: 1  空格4: 0  空格5: 0  空格6: -1  空格7: -1  空格8: 0  空格9: -1  空格10: 0  空格11: 0  空格12: 1 


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