Use De Moivre's theorem to find (2-3i)^4. write your answer in standard form

[qubanz10]

can someone help me check my math
i put it into trig form and get (√13CIS303.7)^4 which equals 169CIS134.8
then converting back to standard form = -119+120i rounded

 

[Deleted member 4993]

can someone help me check my math
i put it into trig form and get (√13CIS303.7)^4 which equals 169CIS134.8
then converting back to standard form = -119+120i rounded ... Correct

.

 

[qubanz10]

thanks