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OCR: (a) N. 3 N 2 N=1 N= 2 N-3 to.Ch (b) Xus N.5 = = 2Xp-Xs XMS IN-42= 2X-+X; Kus IN-6- XS Xus [N ] = 2XA-XS Xus IN_2 = 2X,"Xs Kus IN-G= 4X4-Xs X- = x-dimension of room. X. = x-coordinate of sound source." Xasy= x-coordinate of mirrored sound source in room N. (original room is 0) (c) Xs| N = NX= + |(N mod 2) XR|+ (-1)" Xs Figure 5: (a) Mirrored rooms in the x-dimension only; (b) calculating the positions of the mirrored sound sources; (c) single equation for the position of a mirrored sound source.