Вычислите : (7^-16*3^-13)/21^-14
7⁻¹⁶ ·3⁻¹³ 7⁻¹⁶· 3⁻¹³ 7⁻¹⁶ ·3⁻¹³ ----------------- = ---------------- = ----------------- = 7⁻¹⁶⁻⁽⁻¹⁴⁾· 3⁻¹³⁻⁽⁻¹⁴⁾ = 7⁻²·3¹= 21⁻¹⁴ (7 ·3)⁻¹⁴ 7⁻¹⁴ ·3⁻¹⁴ = ³/₄₉