no idea how to do these 45-54

this reminds me of phasors/admittance

perhaps u can use euler's identity and then convert the result back to trig form for 49-60?

This post was edited by FamilyGuyViewer on Feb 23 2014 08:48pm

it wants them in standard form

so it's simply putting them in the form of

a + bi

so just distribute and take the cosines or sines,

see http://www.suitcaseofdreams.net/conversion_complex_number.htm

thank you!