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LexaWow
@LexaWow
September 2021
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Помогите пожалуйста решить алгебру...
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zhenyaM2002
Verified answer
1) (2¹⁰)³ : 2³³ = 2¹⁰*³ ⁻³³ = 2³⁰⁻³³ = 2⁻³ = 1/2³ = 1/8
2) условие читается неоднозначно
(7⁻⁷ - 7⁻⁶) / 7⁻¹² = 7⁻⁶ * (7⁻¹ -1) / 7⁻¹² =
= (1/7 - 1)/7⁻⁶ = 7⁶ * (-6/7) = - 6 * 7⁵
можно дальше посчитать:
=- 6* 16806= -100836
или
(7⁻⁷ - 7⁻⁶) / (7-12) = ( 7⁻⁶ * (7⁻¹ - 1) ) / (-5) =
= (1/7 - 1) / (-5 * 7⁶) = (- 6/7) / (-5*7⁶) = -6/(-5*7⁷) =
= 1,2 * 7 ⁻⁷
3) 8√3 *√2 * 2√6 = 8√6 * 2√6 = 16*(√6 )²= 16*6=96
4) (√86 +1)² = (√86)² +2*1*√86 + 1² = 86 + 2√86 +1 = 87+2√86
5) ответ : 6
√24 <√32 < (√8+√10) <√36
6) ответ : 6√2 ; 8 ; 2√14
√72 > √64 > √56
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Answers & Comments
Verified answer
1) (2¹⁰)³ : 2³³ = 2¹⁰*³ ⁻³³ = 2³⁰⁻³³ = 2⁻³ = 1/2³ = 1/82) условие читается неоднозначно
(7⁻⁷ - 7⁻⁶) / 7⁻¹² = 7⁻⁶ * (7⁻¹ -1) / 7⁻¹² =
= (1/7 - 1)/7⁻⁶ = 7⁶ * (-6/7) = - 6 * 7⁵
можно дальше посчитать:
=- 6* 16806= -100836
или
(7⁻⁷ - 7⁻⁶) / (7-12) = ( 7⁻⁶ * (7⁻¹ - 1) ) / (-5) =
= (1/7 - 1) / (-5 * 7⁶) = (- 6/7) / (-5*7⁶) = -6/(-5*7⁷) =
= 1,2 * 7 ⁻⁷
3) 8√3 *√2 * 2√6 = 8√6 * 2√6 = 16*(√6 )²= 16*6=96
4) (√86 +1)² = (√86)² +2*1*√86 + 1² = 86 + 2√86 +1 = 87+2√86
5) ответ : 6
√24 <√32 < (√8+√10) <√36
6) ответ : 6√2 ; 8 ; 2√14
√72 > √64 > √56