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Advertising on the Telegram channel «Ethiopia School»

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📌 Let us prepare you for matrics with 📚 Incredible books 📝 Short notes 🌐 Quizzes for all subjects 📍 Studying tips Admin

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ሚያዝያ 29/2017 ዓ.ም

የ2017 ዓ.ም የትምህርት ዘመን የ12ኛ ክፍል ሀገር አቀፍ ፈታና ተፈታኝ ተማሪዎች ከዚህ በታች የተቀመጠውን ሊንክ በመጫን ለፈተና በቂ ዝግጅት ለማድረግ የሚያስችሉ ትምህርቶችን ማግኘት የምትችሉ መሆኑን እናሳውቃለን፡፡

https://examinfo.moe.gov.et/guides

@Ethiopia_School
@Ethiopia_School

3500

16:44

07.05.2025

የእንግሊዝኛ ኢንትራንስ ፈተና ከዚህ ቀደም 120 ጥያቄ ቢሆንም በ2017 ዓ.ም ግን ወደ 100 ቀንሷል ። ይህ መሆኑ ብዙ ተማሪዎች የማይጨርሱትን ፈተና እንዲጨርሱ ያስችላል❗️

@Ethiopia_School
@Ethiopia_School

1500

14:07

07.05.2025

A Null Vector Is A Vector Whose Magnitude Is Zero. (True Or False)

959

13:46

07.05.2025

የ Ethiopia School YouTube ቻናላችንን ይቀላቀሉ 👇👇

https://www.youtube.com/@Ethiopia_School

918

16:57

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https://youtu.be/A0aNC4mBxpw

896

16:28

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In summary: A function is a special type of relation where each input has only one output. The domain is the set of inputs and the range is the set of outputs. Quadratic functions are a specific type of function with a parabolic graph. The domain of combined functions is found by considering the restrictions of individual functions.

898

16:23

06.05.2025

5. Quadratic Function: A quadratic function is a function of the form:

f(x) = ax² + bx + c, where 'a', 'b', and 'c' are constants and a ≠ 0.

* Example: f(x) = 2x² - 3x + 1 is a quadratic function.

* Vertex Form: A quadratic function can also be written in vertex form: f(x) = a(x - h)² + k, where (h, k) is the vertex of the parabola.

* Domain of a Quadratic Function: The domain of a quadratic function is always all real numbers (-∞, ∞). The range depends on whether 'a' is positive (opens upwards) or negative (opens downwards).

823

16:22

06.05.2025

4. Domain of Combination Functions:

When combining functions (e.g., addition, subtraction, multiplication, division, composition), the domain of the resulting function is the intersection of the domains of the individual functions, with additional restrictions for division and composition.

* Example: If f(x) = 1/x (domain: x ≠ 0) and g(x) = x - 1 (domain: all real numbers), then the domain of (f + g)(x) = 1/x + x - 1 is x ≠ 0. The domain of (f/g)(x) = 1/(x(x-1)) is x ≠ 0 and x ≠ 1.

742

15:58

06.05.2025

3. Domain and Range:

* Domain: The set of all possible x-values (inputs) of a relation or function.
* Range: The set of all possible y-values (outputs) of a relation or function.

* Example: For the function f(x) = x + 2, the domain is all real numbers (-∞, ∞), and the range is all real numbers (-∞, ∞).

771

15:58

06.05.2025

2. Function: A function is a special type of relation where *each* x-value is associated with *only one* y-value.

* Example: {(1, 2), (3, 4), (5, 6)} is a function. {(1,2), (1,3)} is NOT a function.

783

15:57

06.05.2025

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