Cine mq ajută are 100 puncte si coroană va rog multtt
Răspunsuri la întrebare
(2/3)ⁿ = 16/81
(2/3)ⁿ = 2⁴/3⁴
(2/3)ⁿ = (2/3)⁴
n = 4
(1/7)ⁿ = 1/343
(1/7)ⁿ = 1³/7³
(1/7)ⁿ = (1/7)³
n = 3
(1 1/2)ⁿ = 3 375/1000
[(2*1+1)/2]ⁿ = [(3*1000+375)/1000]
(3/2)ⁿ = 3375⁽¹²⁵/1000
(3/2)ⁿ = 27/8
(3/2)ⁿ = (3/2)³
n = 3
(2 1/2)ⁿ = 125/8
(5/2)ⁿ = (5/2)³
n = 3
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[(5/6)²+(3/4)²] : 181/12² =
= (⁴⁾25/36 + ⁹⁾9/16) × 144/181
= (100+81)/144 × 144/181
= 181/144 × 144/181
= 1
[(1/2)³ - (1/6)³] × (128-20¹)/(65 : 5) =
= (⁹⁾1/8 - ²⁾1/36) × 108/13
= (9 - 2)/72 × 108/13
= 7/72 × 108/13
= 7/2 × 3/13
= 21/26
(³⁾1/2 + ²⁾1/3 + 1/6)²⁰¹¹ : (4/12)² =
= (3 + 2 + 1)/6]²⁰¹¹ : (1/3²)
= 6/6²⁰¹¹ × 9/1
= 1²⁰¹¹ × 9
= 1 × 9
= 9
[(³⁾1/3 - 1/9)² + (1/3)³] : (1/3)⁴ =
= [(3 - 1)/9² + 1/27] × 3⁴/1
= [(2/9)² + 1/27] × 3⁴
= (4/81 + ³⁾1/27) × 3⁴
= (4/81 + 3/81) × 3⁴
= 7/81 × 3⁴
= 7/81 × 81
= 7