1) a) (a^5)^3 : a^10 * a = a^15 : a^10 * a = a^(15-10+1) =a^6
b) xy^2 - 13xy^2 + 5xy^2 = -7xy^2
v) (3x^3y^4)^3 : (3xy^2)^2 = (3^3 * x^3 * y^12) : (3^2 * x^2 * y^4) =
27 * x^9 * y^12
= ------------------------ = 3x^7y^8
9 * x^2 * y^4
g) (z^9)^4 z^36 z^36
-------------- = -------------- = ---------- = 1
z (z^5)^7 z * z^35 z^36
2) (2^5)^2 * 3^10 2^10 * 3^10
----------------------- = -------------------- = 2^3 * 3^3 = 8 * 27 = 216
6^7 2^7 * 3^7
3) 3 5
(--) ^3 * (---)^2 и 1,6^0
5 3
3 5 3^3 5^2 3
(--) ^3 * (---)^2 = -------- * -------- = ---- = 0,6
5 3 5^3 3^2 5
1,6^0 = 1
0,6 < 1