exam Maths Puzzle Numerical Ability

Find the inverse (A^-1) of the following matrix.

A= [3 -2 -3]
[-2 1 0]
[2 3 -1]

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exam Other Question

The percent of increase is 16%. If the new number is 522, find the original number. four pencils and 2 pens cost $2.26. six pencils and five pens cost $5.17. find the cost of the pencil. find the cost of the pen