Объяснение:

[tex] \frac{(x {}^{4} ) {}^{5} }{x {}^{12} } = \frac{x { }^{20} \times x {}^{2} }{x {}^{12} } = \frac{x {}^{22} }{x {}^{12} } = x {}^{10} = - 1 {}^{10} = 1[/tex]

(x⁴)⁵= 5×4=x²⁰

x²⁰× x²= 20+2=x²²

x²²/x¹²= 22-12=x¹⁰

-1¹⁰=1(степень четная)

Ответ:

1

Объяснение:

[tex] \frac{(x {}^{4}) {}^{5} \times x {}^{2} }{x {}^{12} } = \frac{x {}^{20} \times x {}^{2} }{x {}^{12} } = \\ = \frac{x {}^{20 + 2} }{x {}^{12} } = \frac{x {}^{22} }{x {}^{12} } = \\ = x {}^{22 - 12} = x {}^{10} = \\ = ( - 1) {}^{10} = 1[/tex]