F(x) = 3x/(x^(2 )-1) вычислить f`(0). f(-2) (Тема ПРОИЗВОДНАЯ)

расчитайте силу тока,протекающего по медному проводу длиной 200 м и сечением 0,25мм2 при напряжении 12 В.(пожалуйста переведите сразу все в систему си)

　These days most people, especially young girls, like to look slim.Our grandparents' tastes were different 32______ ours, but nowadays 33______ seems to enjoy 34______ fat girls. That is why many companies have developed special foods to help people to slim. The only thing 35______ is wrong with this is what a friend of mine said to me the other day: " I don't mind 37______ these foods if they will give me a good figure, but why 38______ to taste so awful?" The reason is the manufacturers 40_____ include a lot of vitamins to satisfy the law, so the only sensible advice I could give my friend was "Eat normal food, but 41______ less."

32) 1-than 2-that 3-from 4-to

33) 1-anyone 2-anybody 3-nonr 4-no one

34) 1-looking 2-looking at 3-to look 4-to look at

35) 1-it 2-that 3-what 4-as

37) 1-eat 2-to eat 3-eating 4-the eating

38) 1-do they have 2-they have 3-are they 4-they are

40) 1-have to 2-should to 3-ought 4-have

41) 1-to eat 2-eating 3-be eating 4-eat

газ в сосуде находится под давлением 2*10в 5 степени Па при температуре 127 градусов Целься . Определите давление газа после того, как половина массы газа выпущена из сосуда,а температура пониженна на 50градусов Цельсия.