Ответ: b₂₀ = 524 288 .
Объяснение:
( bₙ ) : b₁ = 1 ; b₂ = 2 ; b₂₀ - ? b₂₀ = b₁* q¹⁹ .
q = b₂/ b₁ = 2/1 = 2 ; q = 2 .
b₂₀ = 1 * 2¹⁹ = 2¹⁹ = ( 2⁵ )³ * 2⁴ = 32³ * 16 = 32768 * 16 = 524 288 ;
b₂₀ = 524 288 .
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Ответ: b₂₀ = 524 288 .
Объяснение:
( bₙ ) : b₁ = 1 ; b₂ = 2 ; b₂₀ - ? b₂₀ = b₁* q¹⁹ .
q = b₂/ b₁ = 2/1 = 2 ; q = 2 .
b₂₀ = 1 * 2¹⁹ = 2¹⁹ = ( 2⁵ )³ * 2⁴ = 32³ * 16 = 32768 * 16 = 524 288 ;
b₂₀ = 524 288 .