摘要： Find the matrix products in the following questions: (i) (ii) (iii) (iv) (v) (vi) INVERSE MATRICES An important aspect of matrices is the ability to be able to find the inverse of the matrix. This replaces the idea of division. If the first step to finding its inverse is to calculate the determinant. The determinant is represented by . The inverse of A is then given by: or eg. If then Then Then we can check what the advantage of the inverse is: The Unit matrix. Type in the matrix you are working with: Use the ANS feature to find the inverse: Check that when you multiply the original and the inverse together that the unit matrix is produced. Note ans(2) is the second last answer! Exercise 3:
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以下是用Scilab编写的程序，输出a，b的含义是________________．
a=input(“please give the first number”)
b=input(“please give the second number”)
while a＜＞b
if a＞=b
a=a－b；
else
b=b－a；
end
end
print(％io(2)，a，b)
查看习题详情和答案>>以下是用
Scilab编写的程序，输出a，b的含义是________________．a=input(
“please give the first number”)b=input(
“please give the second number”)while
a＜＞bif a＞=b
a=a－b；
else
b=b－a；
end
end
print(
％io(2)，a，b) 查看习题详情和答案>>过点A（a，a）可作圆x2+y2-2ax+a2+2a-3=0的两条切线，则实数a的取值范围为（ ）
A、a＜-3或1＜a＜
| ||
B、1＜a＜
| ||
| C、a＜-3 | ||
D、-3＜a＜1或a＞
|