How do you simplify i^266? Precalculus Complex Numbers in Trigonometric Form Powers of Complex Numbers 1 Answer mason m ยท Alan P. Jan 20, 2016 -1 Explanation: The powers of i go as follow: i=sqrt(-1) i^2=-1 i^4=(i^2)^2=1 Thus, we can rewrite i^266 in terms of these: i^266=(i^4)^66(i^2)=(1)^66(-1)=-1 Answer link Related questions How do I use DeMoivre's theorem to find (1+i)^5? How do I use DeMoivre's theorem to find (1-i)^10? How do I use DeMoivre's theorem to find (2+2i)^6? What is i^2? What is i^3? What is i^4? How do I find the value of a given power of i? How do I find the nth power of a complex number? How do I find the negative power of a complex number? Write the complex number i^17 in standard form? See all questions in Powers of Complex Numbers Impact of this question 1908 views around the world You can reuse this answer Creative Commons License