xudoyor_baxriddinov

Vektorlarni topish uchun, A, B, C va D nuqtalari orasidagi vektorlarni topamiz: \(\overrightarrow{AB} = B - A = (-1 - 7, 8 - (-4), -1 - (-3)) = (-8, 12, 2)\) \(\overrightarrow{AC} = C - A = (-12 - 7, -1 - (-4), 0 - (-3)) = (-19, 3, 3)\) \(\overrightarrow{AD} = D - A = (2 - 7, 1 - (-4), 4 - (-3)) = (-5, 5, 7)\) Vektorlarni aralash ko'paytmasini topish uchun, ularni ko'paytiramiz: \(\overrightarrow{AB} \cdot \overrightarrow{AC} = (-8)(-19) + (12)(3) + (2)(3) = 152 + 36 + 6 = 194\) Piramidaning hajmini topish uchun, ABC to'g'ri to'rtburchakning hajmini topish formulani foydalanamiz. ABCD to'g'ri to'rtburchak hajmini topish formulasi: \[ V = \frac{1}{3} \cdot \left| \overrightarrow{AB} \c

29. Most people from Africa have got a. small nose 30. I have got 3 cats c. have 31. My uncle has two sons c. have 32. Our parents have holiday in Summer c. have 33. I have two daughters. They are students. a. They 34. My friends and I are in Uzbekistan. They are students. b. They 35. Richard is 23 years c. old 36. What is his job? He is an engineer. b. job 37. What is her favorite sport? It is golf. a. favorite 38. The capital of Australia is Canberra. c. capital 39. Ann has got blue eyes and short curly hair. b. tall 40. They are from Africa. c. are 41. Mark is a postman. b. is 42. Her favorite sport is golf. c. golf 43. Mark is a basketball player. a. player 44. We are from Uzbekistan. c.

1. Быть сильным, сильная девушка, сильное поколение. 2. Наш институт, наша школа, наш отдел. 3. Твой ответ, твоя ручка, твоя просьба. 4. Ваш начальник, ваш отец, ваше поручение.

1. Молодой парень, молодая девушка, молодое поколение. 2. Наш институт, наша школа, наше подразделение. 3. Твой ответ, твоя ручка, твоя просьба. 4. Ваш начальник, ваш отец, ваше поручение.