A condenser lens is a lens or set of lenses used to collect and concentrate light onto a small area. In a microscope, it sits below the stage and focuses light from the lamp onto the specimen to make the image brighter and clearer.

(3\(x\) - 5) ⋮ (\(x-5\)) Đk : \(x\) ≠ 5; \(x\in\) N

Giải: [3(\(x-5\)) + 10] ⋮ (\(x-5\))

10 ⋮ (\(x-5\))

(\(x-5\)) ∈ Ư(10) = {-10; -5; -2; -1; 1; 2; 5;10}

Lập bảng ta có:

Theo bảng trên ta có: \(x\in\) {-5; 0; 3; 4; 6; 7; 10; 15}

Vậy \(x\) ∈ {-5; 0; 3; 4; 6; 7; 10; 15}.

Olm chào em, cảm ơn đánh giá của em về chất lượng bài giảng của Olm, cảm ơn em đã đồng hành cùng Olm trên hành trình tri thức. Chúc em học tập hiệu quả và vui vẻ cùng Olm em nhé!

14

0

25

25

​
bằng −167/3 bạn nhé

- 152 - (3\(x+1\)) = (-2).(-7)

- 152 - 3\(x-1\) = 14

3\(x\) = - 152 - 1 - 14

3\(x\) = - 153 - 14

3\(x\) = - 167

\(x\) = - 167 : 3

\(x\) = - \(\frac{167}{3}\)

Vậy \(x=-\frac{167}{3}\)

=14 bn nhé

nhớ tick cho mik nhé

brenro

Chịu

I'm fine thank you

I'm from Vietnam

I'm 14 years old

I'm in 9A1

I'm in Tran Phu Secondary School
( hẹ hẹ)

I'm fine . no thank!!!

I'm from binh duong

I'm one year old

67

67

dell nói

Topic 1:

I enjoy reading books in my free time. I read in the evening when the house is quiet. It helps me relax and learn new things. Sometimes I read stories, and sometimes I read simple English books to practice.

Topic 2:

There is a small pho restaurant near my house, and I really like it. The food is fresh, the place is clean and the pho taste great. I go there with my family every weekend.

Topic 3:

My favorite festival is Tet. My family cleans the house, decorates with flowers, and cooks special food. I enjoy visiting relatives and getting lucky money. Tet makes me feel happy because everyone spends time together.