Question

Oblicz:

a) (-6)^-2 * (1/6)^-4 =

b) (2^-5 * 2^-3 / 2^-7) ^-2 =

c) 3^-6 * (3^-2 : 3) ^-1 / 3^4 : (3^2 * 3^6) =

Proszę o w miarę szybkie odp.

Answer 1

a)

(-6)⁻²·(1/6)⁻⁴ = 6⁻²·6⁴ = 6⁴⁻² = 6² = 36

b)

(2⁻⁵·2⁻³/2⁻⁷)⁻² = (2⁻⁸/2⁻⁷)⁻² = (2⁻⁸⁺⁷)⁻² = (2⁻¹)⁻² = 2² = 4

c)

3⁻⁶·(3⁻²÷3)⁻¹/3⁴÷(3²·3⁶) = 3⁻⁶·(3⁻³)⁻¹/3⁴÷3⁸ = 3⁻⁶·3³/3⁻⁴ = 3⁻³/3⁻⁴ = 3⁻³⁺⁴ = 3¹ = 3