For each matrix a given below:
i. plot the image of the unit cube under the transformation.
ii. find the volume of the image of the unit cube from part (i).
iii. does the transformation have an inverse? if so, what is the matrix that induces the inverse
transformation?
a. a =
2 0 0
0 2 0
0 0 2

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If square root x = -7, then x= -49 true or false