A) (4⁵.2⁻²)⁻³ b) (11.3)²⁰ 3¹⁸ c) (2⁵)³ (2⁴.2)² d) {(-1,1)³}⁷ (...

A) (4^5.2^-2)^-3
4^-15.2^6

b) (11.3)^20/3^18
11^20.3^20/3^18
11^20.3^2

c) (2^5)^3/(2^4.2)^2
2^15/(2^5)^2
2^15/2^10
2^15-10= 2^5

d){(-1,1)^3}^7/(-1,1).(-1,1)^8.(-1,1)^10

(-1,1)^21/(-1,1)^19
(-1,1)^21-19
(-1,1)^2​