Odpowiedzi

  • Roma
  • Community Manager
2010-01-09T23:57:52+01:00
B = (4√2-2√3)(4√2+2√3) = (4√2)² - (2√3)² = 16*2 - 4*3 = 32 - 12 = 20
a = 5¹⁶+25⁷÷26×5¹² = 5¹⁶ + (5²)7 / 26*5¹² = 5¹⁶ + 5¹⁴ / 26*5¹² =
5¹⁴(5² +1) / 26*5¹² = 5² + 1 / 26 = 25 + 1 / 26 = 26 / 26 = 1
a > b
a⁻¹ = 1 /a¹ = 1 / a
a⁻¹ = 1/20
b⁻¹ = 1 /b¹ = 1 / b
b⁻¹ = 1 /1¹ = 1 / 1 = 1
a⁻¹ < b⁻¹