Calculate
( minus ( 2 over 3 ) + ( 2 over 3 ) i ) to the power minus 4,
simplifing your answer and giving it in the form a + i b, with a and b given exactly.I found the modulus by:
sqrt((-2/3)^2 + (2/3)^2)
= (2*sqrt(2))/3
the argument is:
pi - 1 (from a sketch in the complex plane)
hence...