Shunday natural $n$ sonlarni topingki, bunda $\dfrac{n^2-3n-18}{n}$ ifodaning qiymati ham natural son bo'lsin.
- A. $1;3;6;9;18$
- B. $1;2;3;6;18$
- C. $9;18$
- D. $1;2;6;9;18$
Algebraik kasrlar bo‘yicha savol
Javob va yechimni ko‘rish
Javob: $9;18$
$n-3-18/n$ butun bo‘lishi uchun $n\mid18$. Musbat qiymat faqat 9 va 18 da chiqadi, 6 da qiymat nol.
Mavzuni mustahkamlang
Bu savol Algebraik kasrlar mavzusiga tegishli. Ta’riflar, formulalar va misollarni mavzu sahifasida ko‘ring.
Mavzuni o‘rganishShu mavzudagi boshqa savollar
Ifodani soddalashtiring: $\frac{x^2 - 9}{x^2 + 6x + 9} \cdot \frac{x + 3}{x - 3}$Kasrlarni ayiring: $\frac{2a}{a^2 - b^2} - \frac{1}{a - b}$Tenglamani yeching: $\frac{x}{x-2} - \frac{2}{x-2} = 1$Ifodani soddalashtiring: $\left(\frac{1}{x} + \frac{1}{y}\right) : \frac{x^2 - y^2}{xy}$Agar $x + \frac{1}{x} = 5$ bo'lsa, $x^2 + \frac{1}{x^2}$ ning qiymatini toping.