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Find the determinant of a 3x3 matrix.

Will need a whiteboard so I can draw a matrix to fully explain.

Answered by Shaun M. • Further Mathematics tutor

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Show that the points on an Argand diagram that represent the roots of ((z+1)/z)^6 = 1 lie on a straight line.

How do you find the determinant of a matrix?

Find the general solution for the determinant of a 3x3 martix. When does the inverse of this matrix not exist?

Expand (1+x)^3. Express (1+i)^3 in the form a+bi. Hence, or otherwise, verify that x = 1+i satisfies the equation: x^3+2*x-4i = 0.

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