Помогите пожалуйста завтра экзамен!!!!!!!!!!!. Created by ttimchuk26. matematika-ru

Помогите пожалуйста завтра экзамен!!!!!!!!!!!...

July 2022 1 5 Report

Помогите пожалуйста завтра экзамен!!!!!!!!!!!

Answers & Comments

snow99 1.11. По теореме синусов:
AB/sinC = 2R,
2R = 3sqrt(2) : sqrt(2)/2 = 3sqrt(2) * 2/sqrt(2) = 6
R = 3 (см).
Ответ: Б)

1.12. AB = (3 - 3; - 4 - (-1)) = (0; -3)
|AB| = sqrt(0^2 + (-3)^2) = sqrt(9) = 3.
Ответ: В)

2.1.
$( \frac{x - 2y}{ {x}^{2} + 2xy } - \frac{x + 2y}{ {x}^{2} - 2xy } ) \div \frac{4 {y}^{2} }{4 {y}^{2} - {x}^{2} } = ( \frac{x - 2y}{x(x + 2y)} - \frac{x + 2y}{x(x - 2y)} ) \div \frac{4 {y}^{2} }{(2y - x)(2y + x)} = ( \frac{ {(x - 2y)}^{2} }{x(x + 2y)(x - 2y)} - \frac{ {(x + 2y)}^{2} }{x(x - 2y)(x + 2y)} ) \div \frac{4 {y}^{2} }{(2y - x)(2y + x)} = \frac{(x - 2y + x + 2y)(x - 2y - x - 2y)}{x(x - 2y)(x + 2y)} \times \frac{(2y - x)(2y + x)}{4 {y}^{2} } = \frac{2x \times ( - 4y)}{x(x - 2y)(x + 2y)} \times \frac{ - (x - 2y)(x + 2y)}{4 {y}^{2} } = \frac {8xy}{4x {y}^{2}}=\frac{2}{y}$

0 votes Thanks 0

understand why he 17 sit there for three minutes when a professor ran into the room you 18 make a mistake he said you

Answer

ttimchuk26 June 2023 | 0 Ответы

Transform the sentences from Active into Passive Voice. 1) The police have arrested the kidnappers. 2) Doctors always examine the patients before

Answer

ttimchuk26 May 2023 | 0 Ответы

Carla has always been (1) _ (interest) in dancing. Even as a young girl, she was always keeping her relatives (2) (entertain)

Answer

ttimchuk26 May 2023 | 0 Ответы

Answers & Comments

understand why he 17 sit there for three minutes when a professor ran into the room you 18 make a mistake he said you

Transform the sentences from Active into Passive Voice. 1) The police have arrested the kidnappers. 2) Doctors always examine the patients before

Carla has always been (1) _ (interest) in dancing. Even as a young girl, she was always keeping her relatives (2) (entertain)

not having known his phone number i wasnt able to contact him

Fill in the gaps with the correct comparative or superlative form of the adjecti...

STREET FOOD IN SOUTHERN ASIA Southern Asia is famous worldwide for its (1) _____...

by my own...

Transform the following sentences from Active Voice into Passive Voice. 1) Kate...

5678 prvidminyati chislivnik

Fill in the correct form of the words in brackets. 1) To be a good nurse, a nurs...

рекомендуемые вопросы

Helpful Links

Helpful Social

Answers & Comments

understand why he 17 sit there for three minutes when a professor ran into the room you 18 make a mistake he said you

Transform the sentences from Active into Passive Voice. 1) The police have arrested the kidnappers. 2) Doctors always examine the patients before

Carla has always been (1) _________________ (interest) in dancing. Even as a young girl, she was always keeping her relatives (2) ________________ (entertain)

not having known his phone number i wasnt able to contact him

Fill in the gaps with the correct comparative or superlative form of the adjecti...

STREET FOOD IN SOUTHERN ASIA Southern Asia is famous worldwide for its (1) _____...

by my own...

Transform the following sentences from Active Voice into Passive Voice. 1) Kate...

5678 prvidminyati chislivnik

Fill in the correct form of the words in brackets. 1) To be a good nurse, a nurs...

рекомендуемые вопросы

Helpful Links

Helpful Social

Carla has always been (1) _ (interest) in dancing. Even as a young girl, she was always keeping her relatives (2) (entertain)