Ⅳ. 행렬	￭ 행렬의 연산
계산력 문제		학년 반
		이름

행렬의 덧셈, 뺄셈과 실수배

1. 다음을 계산하시오.

(1) [eqn: LEFT ( pile{2#-1} RIGHT ) + LEFT ( pile{3#5} RIGHT )]	(2) [eqn: LEFT ( pile{3#1} RIGHT ) - LEFT ( pile{2#-3} RIGHT )]
(3) [eqn: LEFT ( {matrix{-1&````-2#3&2}} RIGHT ) + LEFT ( {matrix{5&```3#4&````-7}} RIGHT )]	(4) [eqn: LEFT ( {matrix{5&````-3#2&```-4}} RIGHT ) - LEFT ( {matrix{3&```-1#-2&````0}} RIGHT )]
(5) [eqn: LEFT ( {matrix{3&````-1````````1```#2&````````4``````-3}} RIGHT ) + LEFT ( {matrix{0&``````8````````-1#-5&````1``````````````2}} RIGHT )]	(6) [eqn: LEFT ( {matrix{13&```````2```````-1#7&`-3``````````5}} RIGHT ) - LEFT ( {matrix{8&``-2````````1#-4&``````````1``````````3}} RIGHT )]
(7) [eqn: LEFT ( {matrix{2&&1#-1&&7#3&&-5}} RIGHT ) + LEFT ( {matrix{1&&-2#4&&0#2&&-1}} RIGHT )]	(8) [eqn: LEFT ( {matrix{0&&3#6&&-1#-2&&11}} RIGHT ) - LEFT ( {matrix{3&&1#2&&-4#-5&&8}} RIGHT )]

2. 두 행렬 [eqn: A= {pmatrix{3&1#2&````-1}} ,~B= {pmatrix{-5&````1#0&````2}}]에 대하여 다음을 구하시오.

(1) [eqn: 2A-B]	(2) [eqn: A-3B]
(3) [eqn: A+3B- LEFT ( 2A-B RIGHT )]	(4) [eqn: A-B+2(3A+B)-3 LEFT ( A-2B RIGHT )]

행렬의 곱셈

3. 다음을 계산하시오.

(1) [eqn: LEFT ( 2`````-3 RIGHT ) LEFT ( pile{1#2} RIGHT )]	(2) [eqn: LEFT ( -1``````2 RIGHT ) LEFT ( pile{-2#5} RIGHT )]
(3) [eqn: LEFT ( pile{3#-1} RIGHT ) LEFT ( 4`````-2 RIGHT )]	(4) [eqn: LEFT ( pile{-2#5} RIGHT ) LEFT ( 3`````-1 RIGHT )]
(5) [eqn: (1``````2) LEFT ( {matrix{3&```4#2&````-1}} RIGHT )]	(6) [eqn: (-2``````3) LEFT ( {matrix{1&`````4#5&``````6}} RIGHT )]
(7) [eqn: LEFT ( {matrix{2&````-5#3&`````1}} RIGHT ) LEFT ( pile{-2#7} RIGHT )]	(8) [eqn: LEFT ( {matrix{-1&````-2#3&`````4}} RIGHT ) LEFT ( pile{2#-3} RIGHT )]
(9) [eqn: LEFT ( {matrix{1&``````2#4&```````3}} RIGHT ) LEFT ( {matrix{2&`````3#-1&`````5}} RIGHT )]	(10) [eqn: LEFT ( {matrix{-2&``````0#```3&```````1}} RIGHT ) LEFT ( {matrix{5&`````7#-1&`````-2}} RIGHT )]

4. 두 행렬 [eqn: A= {pmatrix{-1`&```2#5&````1}} ,~B= {pmatrix{2&````-3#1&````-4}}]에 대하여 다음을 구하시오.

(1) [eqn: A(A+B)]	(2) [eqn: B(2A-B)]
(3) [eqn: AB-BA]	(4) [eqn: A ^{2} +2BA]