- #1
kathrynag
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Homework Statement
Establish associative law of multiplication by considering absolute values and arguements.
z1(z2z3)=(z1z2)z3
Homework Equations
The Attempt at a Solution
I think I need to use r(costheta +isintheta)
r1(costheta1+isintheta1)[r2r3(costheta2+isintheta2)(costheta3+isintheta3)]=
Is this just a bunch of multiplying out and showing it's the same?