Amalni bajaring: $\left(1+\frac{2}{3}\right)\cdot \left(1+\frac{2}{4}\right)\cdot \left(1+\frac{2}{5}\right)\cdot \ldots \cdot \left(1+\frac{2}{58}\right)$
- A. 60
- B. 29
- C. 15
- D. 295
Oddiy kasrlar va ular ustida amallar bo‘yicha savol
Javob va yechimni ko‘rish
Javob: 295
Har bir ko'paytuvchi (k+2)/k ko'rinishida: $\frac{5}{3}\cdot\frac{6}{4}\cdot\frac{7}{5}\cdots\frac{60}{58}$. Qisqartirganda $\frac{59\cdot60}{3\cdot4}=295$ qoladi. To'g'ri javob: D.
Mavzuni mustahkamlang
Bu savol Oddiy kasrlar va ular ustida amallar mavzusiga tegishli. Ta’riflar, formulalar va misollarni mavzu sahifasida ko‘ring.
Mavzuni o‘rganishShu mavzudagi boshqa savollar
$\frac{3}{4}+\frac{5}{6}-\frac{2}{3}$ ifodasini soddalashtiring.$\frac{7}{9}\times\frac{3}{14}$ ni hisoblang va soddalashtiring.$\frac{x}{5}-\frac{2}{3}=\frac{1}{15}$ tenglamasida $x$ ni toping.$\frac{2}{5}\div\left(\frac{4}{15}\right)+\frac{1}{2}$ ifodasini hisoblang.Agar $\frac{3}{x}=\frac{9}{12}$ bo‘lsa, $x$ ni toping va $x-\frac{1}{4}$ ning qiymatini hisoblang.