유한 수학 예제

기약 행 사다리꼴 구하기 [[cos(x),sin(x),xcos(x),xsin(x)],[-sin(x),cos(x),cos(x)-xsin(x),sin(x)+xcos(x)],[-cos(x),-sin(x),-2sin(x)-xcos(x),2cos(x)-xsin(x)],[sin(x),-cos(x),-3cos(x)-xsin(x),-3sin(x)xcos(x)]]