Topic
Q:
(a) Prove that the set of natural numbers is countable.
(b) Find the limit point/points of:
\( \mathrm{A}=\left\{1,-1,1 \frac{1}{2},-1 \frac{1}{2}, 1 \frac{1}{3},-1 \frac{1}{3}, \ldots\right\} \)
Q:
Find the LCM of this set of numbers
27 and 45
Q:
Se você tem 3,75 litros de leite e usa 1,25 litros para fazer um bolo, quantos litros de leite restam?
Q:
4. Determine an exact value for the following:
\( \sin \frac{29 \pi}{18} \)
Q:
\( A=\left[\begin{array}{ccc}1 & 3 & 5 \\ 5 & -1 & 1 \\ 3 & 0 & -2\end{array}\right] \quad B=\left[\begin{array}{ccc}3 & -5 & 2 \\ 3 & 4 & 0 \\ 2 & 1 & -3\end{array}\right] \quad C=\left[\begin{array}{ccc}2.1 & -4 & 1.5 \\ -3 & 5 & 0.3 \\ 5.4 & 2 & -2.8\end{array}\right] \)
Find the value in row 2 columin 1 of \( A+B \).
Q:
Expand.
Your answer should be a polynomial in standard form.
\( (6 f-7)(8 f-9)=\square \)
Q:
Bài 2. Tính tích phân \( I=\iint_{D} x^{2} y d x d y \), trong đó D là miền đóng và bị chặn giới hạn
bởi tam giác OAB, biết \( O(0 ; 0), A(1 ; 0), B(2 ; 2) \).
Q:
Find the prime factorization of 400 .
Question Help: \( \square \) Video
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Q:
If you applied the divisibility test for 8 to determine whether
or not the natural number 437739462455 is divisible by 8 ,
you would check to see if 8 divides what number?
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Q:
138. Hallar el resto de la división
\( \frac{[(x+4)(x+3)(x+2)(x+1)+3]^{4}}{x^{2}+5 x+5} \)
\( \begin{array}{lllll}\text { a. } 25 & \text { b. } 34 & \text { c. } 43 & \text { d. } 27 & \text { e. } 6\end{array} \)
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