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Matrices Let p is any point in the plane of two diormensional frame co-ordinate of the point p is (x_1,x_2)with respect to thex_1 x_2 and that of (y_1,y_2 ) with respect to the y_1 y_2 plane.
That is y_1 y_2is rotated angle θwith the previous plane x_1 x_2 therefore. y_1=x,cosθ+x_2 sinθ y_2=-x,sinθ+x_2 cosθ These equation defined mapping of the x_1,x_2 plane into the y_1,y_2plane. The general linear transformation is defined by the equation. y_1=a_11 x_1+a_12 x_2+a…………………..+a_1n x_n y_2=a_21 x_1+a_22 x_2+ …………………..+a_2n x_n y_m=a_m1 x_1+a_m2 x_2+ …………………..+a_mn
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