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Preeti Dabral 3 years, 1 month ago
The Bengal School of Art, commonly referred as Bengal School, was an art movement and a style of Indian painting that originated in Bengal, primarily Kolkata and Shantiniketan, and flourished throughout the Indian subcontinent, during the British Raj in the early 20th century.
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Pushkar Singh Dhami
Satpal Maharaj
Premchand Aggarwal
Ganesh Joshi
Dhan Singh Rawat
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Preeti Dabral 3 years, 1 month ago
किसी परीक्षण के लिये निर्धारित प्रक्रिया परीक्षण विधि कहलाती है। सही परीक्षण के लिये सुविचारित परीक्षण विधि का उपयोग करना बहुत आवश्यक है। परीक्षण वह मानकीकृत साधन है जिसके द्वारा संपूर्ण मानव व्यवहार के विभिन्न पक्षों संबंधी विशेषताओं का मात्रात्मक एवं गुणात्मक अध्ययन किया जाता है
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Preeti Dabral 3 years, 1 month ago
Given: A circle with centre O. A tangent CD at C.
Diameter AB is produced to D.
BC and AC chords are joined, ∠BAC = 30°
To prove: BC = BD
Proof: DC is tangent at C and, CB is chord at C.
Therefore, ∠DCB = ∠BAC [∠s in alternate segment of a circle]
⇒ ∠DCB = 30° …(i) [∵ ∠BAC = 30° (Given)]
AOB is diameter. [Given]
Therefore, ∠BCA = 90° [Angle in s semi circle]
Therefore, ∠ABC = 180° - 90° - 30° = 60°
In ΔBDC,
Exterior ∠B = ∠D + ∠BCD
⇒ 60° = ∠D + 30°
⇒ ∠D = 30° …(ii)
Therefore, ∠DCB = ∠D = 30° [From (i), (ii)]
⇒ BD = BC [∵ Sides opposite to equal angles are equal in a triangle]
Hence, proved.
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Preeti Dabral 3 years, 1 month ago
Given,
There are some dietary requirements of the staple food of the adolescent students of some schools.
To Find,
(1) 2 food items including one pulse and one cereal.
(2)The minimum cost of one pulse and one cereal.
(3) The formulated version of the corresponding linear programming problem.
(4)The problem graph,
Solution,
We can solve this mathematical linear programming problem using the method.
At first let's assume that the 2 food items be, Wheat and arhar dal or pigeon peas.
The rate of Wheat is Rs. 20 per kg and the rate of Arhar dal is Rs. 100 per kg.
So, we need to minimize the 100x+20y.
We know protein in arhar dal is 220gm / kg and in wheat 100gm/kg.
Carbohydrate in arhar dal is 630gm / kg and in wheat 760gm/kg.
Suppose the dietary requirements of adolescent students are as below,
- The requirement for protein is 60gm
- Carbohydrate is 1500gm.
So we can formulate our corresponding linear programming problem as follows,
Zminimize=100x+20y
Constrains are-
{tex}\begin{aligned} & 220 x+100 y \geq 60 \\ & 630 x+760 y \geq 1500 \text { and } \mathrm{x}, \mathrm{y} \geq 0 \end{aligned}{/tex}
Hence, the answers are as follows- The two food items including one pulse and one cereal are Wheat and Arhar dal/ pigeon peas. The arhar dal is Rs.100/kg and wheat is Rs. 20/kg. The linear programming problem is -Zminimize=100x+20y, Constrains are- {tex}\begin{aligned} & 220 x+100 y \geq 60 \\ & 630 x+760 y \geq 1500 \text { and } \mathrm{x}, \mathrm{y} \geq 0 \end{aligned}{/tex} and x,y{tex}\geq 0{/tex}
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Preeti Dabral 3 years, 1 month ago
1.Go to the Review tab.
2.In the Changes group, click on the Track Changes option and select Highlight Changes.
3.In the Highlight Changes dialog box, check the option – 'Track changes while editing. This also shares your workbook'. ...
4.Click OK.
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Preeti Dabral 3 years, 1 month ago
The biological component includes the plants, animals, insects, earthworms, nematodes, arthropods, protozoa, fungi, and bacteria that live in the soil. The biological community is a very important component of soil health
Raunak Yadav 3 years, 1 month ago
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Preeti Dabral 3 years, 1 month ago
Communication is usually defined as the transmission of information. The term may also refer to the message communicated through such transmissions or the field of inquiry studying them. There are many disagreements about its precise definition.
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Charnjeet (Ashutosh) 3 years, 1 month ago
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Preeti Dabral 3 years, 1 month ago
Database Management System (DBMS) is a collection of programs that enable users to create, maintain a database, and control all the access to the database. The primary goal of the DBMS is to provide an environment that is both convenient and efficient for users to retrieve and store information. The advantages of using DBMS for school are as follows:
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