Find [sin4x cos8x dx . a) [sin 4xcos 8x dx =(3cos 4x-cos12x)+C 24 b) ſsin 4xcos 8x dx =(4cos 4x + cos 1lx)+C 24 c) fsin 4xcos 8x dr =-(cos12x-3cos 4x)+C 25 d) ſsin 4.xcos8x dx =(3cos 4x-cos12x)+C 25 e) sin 4xcos 8x dx =(cos1lx+3cos 4x)+C 12

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