Mathematics


Kanal geosi va tili: Efiopiya, Inglizcha
Toifa: Ta’lim


This channel provides maths questions , answers and concepts.

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Kanal geosi va tili
Efiopiya, Inglizcha
Statistika
Postlar filtri


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New curriculum
Mathematics grade 9 units
The new curriculum mathematics for grade 9 has 9(nine) units in total those are👇👇

Unit 1': Further on Sets
Unit 1 : The Number System
Unit 2 : Solving Equations
Unit 3 : Solving Inequalities
Unit 4 : Introduction to Trigonometry
Unit 5 : Regular Polygons
Unit 6: Congruency and Similarity
Unit 7 : Vectors in Two Dimensions
Unit 8 : Statistics and Probability



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#Questions_On_The_set_Of_Complex_Number


50. If y+1/y=2 cosፀ, Find y
So‘rovnoma
  •   A. y=cosፀ ± isnፀ
  •   B. y=sinፀ ± cosፀ
  •   C. y=cosፀ ± cosፀ
  •   D. y=sinፀ ± sinፀ
78 ta ovoz


49. For z = x+yi, which of the following represent the circle (x-3)²+(y+1)²=4
So‘rovnoma
  •   A. |z+3-i|=4
  •   B. |z-3+i|=4
  •   C. |z+3-i|=2
  •   D. |z-3+i|=2
69 ta ovoz


48. If the complex number a + bi corresponds to the point (a,b) to what point does 2i -πi correspond ____________
So‘rovnoma
  •   A. (2i, -π)
  •   B. (2-π,0)
  •   C. (0,2-π)
  •   D. (2,π)
62 ta ovoz


47. Simplified from of i(1+√3i)^6 -65i is equal to
So‘rovnoma
  •   A. 1
  •   B. i
  •   C. -i
  •   D. i+1
57 ta ovoz


46. The modulus of 1/i³ + -5+3i/12-5i is equal to
So‘rovnoma
  •   A. √15/13
  •   B. 15/13
  •   C. 1+√34/13
  •   D. 20/13
49 ta ovoz




በሀገር አቀፍ ደረጃ ላለፉት አራት ቀናት ሲሰጥ የቆየው የ12ኛ ክፍል የተፈጥሮ ሳይንስ መልቀቂያ ብሔራዊ ፈተና ተጠናቋል፡፡

የፈተናው መጠናቀቅን ተከትሎ ተፈታኝ ተማሪዎች ወደየመጡበት መመለስ ጀምረዋል።

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45. What is the mean and the median of the numbers 8,3,5,10,12 respectively
So‘rovnoma
  •   A. 9 and 7.6
  •   B. 6 and 5
  •   C. 7.6 and 9
  •   D. 5 and 6
61 ta ovoz


44. How many possible 3 members committees can be selected from an organization that contains 10 members
So‘rovnoma
  •   A. 120
  •   B. 360
  •   C. 240
  •   D. 720
51 ta ovoz


43. A bag contains 3 fresh and 5 spoiled oranges are to be drawn at random from the bag, what is the probability that at least one of the oranges is fresh?
So‘rovnoma
  •   A. 15/28
  •   B. 15/56
  •   C.45/56
  •   D. 23/28
38 ta ovoz


42. Ajar contains 3 red and 5 green balls identical in all aspects except color. If two balls are drawn at random, then the probability that the two balls drawn are not green is
So‘rovnoma
  •   A. 9/14
  •   B. 15/28
  •   C. 3/28
  •   D. 5/14
37 ta ovoz


41. In pack of ten books, three are geometry books while the rest are book of algebra. If three books are drawn at random, what is the probability that one of them is geometry book and the other are book on algebra
So‘rovnoma
  •   A. 21/40
  •   B. 21/100
  •   C. 2/21
  •   D. 7/10
41 ta ovoz

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