About Lesson
2.2 Inverse Matrices逆矩阵
[1]
Given A = and B = , if AX = B, find X.
已知A = 和 B = , 若 AX = B, 求 X.
Answer:
[2]
A = , B =
[a]
Given that A = kA–BI, where k is a constant, find the values of k.
已知A = kA–BI, 其中k 是常数, 求 k的值.
[b]
If AX = I, find matrix X
若AX = I, 求 X矩阵。
Answer:
(a) 5
(b)
[3]
Given A= , if the inverse of A does not exist, find the value of k.
已知A= , 若 A 的逆矩阵不存在, 求k 的值.
Answer:
–3, 5
[4]
A=
[a] if the inverse of A does not exist, find the value of x, 若A 的逆矩阵不存在, 求x 的值.
[b] if , find the value of x.
Answer:
(a) ,
(b)
[5]
Find the inverse of the following matrices
求下列各矩阵的逆矩阵
[a]
[b]
Answer:
(a)
(b)