How are the eigenvalues of A hermitian related to the eigenvalues of the square complex matrix A? Prove it.

Hi there,   A straight line wrapped around the world would eventually come back to join the beginning of the line. We often describe this when describing parallel lines for example. However,...

amiras car is worth 15,890 now and expected to be worth 12,230 in 4 years. Assuming linear depreciation, find a linear function for this car and estimate its value in 7 years.

'A cyclist travelling at an average speed of u km/h takes t hours to travel from A to B. On reaching B, the cyclist rests for 0.1t hours before returning from B to A along the same route. If the cyclist...

'The ratio of the length to the width to the height of a rectangular prism is 2:1:3 and the sum of the lengths of all its edges is 360 cm. Calculate the height of of this rectangular prism.'   I'd...

I have a drill rig that uses 6 meter rods. The drill rig will drill 18000 meters with an average hole depth of 125 meters. The drill rig uses 6 meter rods to drill the hole. therefore the first rod...

Write your own linear real-world word problem. Make sure to include the following: An initial value, a constant rate, a clear independent variable or input, a clear dependent variable or output, and...

At a candy ship, bubble gum costs 15 cents each and lolly pops costs 25 cents each (no tax). Emily has \$3 to spend on bubble gum and lolly pops. Find the linear cost equation for the mix of candy...