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Posted by Aryan Tiwari 4 years, 8 months ago
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Gaurav Seth 4 years, 8 months ago
HRD Minister Ramesh Nishank announced a major CBSE syllabus reduction for the new academic year 2020-21 on July 7 which was soon followed by an official notification by CBSE on the same.
Considering the loss of classroom teaching time due to the Covid-19 pandemic and lockdown, CBSE reduced the syllabus of classes 9 to 12 with the help of suggestions from NCERT.
The CBSE syllabus has been rationalized keeping intact the learning outcomes so that the core concepts of students can be retained.
Deleted syllabus of CBSE Class 10 Science
Posted by Krisi . 4 years, 8 months ago
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Gaurav Seth 4 years, 8 months ago
HRD Minister Ramesh Nishank announced a major CBSE syllabus reduction for the new academic year 2020-21 on July 7 which was soon followed by an official notification by CBSE on the same.
Considering the loss of classroom teaching time due to the Covid-19 pandemic and lockdown, CBSE reduced the syllabus of classes 9 to 12 with the help of suggestions from NCERT.
The CBSE syllabus has been rationalized keeping intact the learning outcomes so that the core concepts of students can be retained.
Deleted syllabus of CBSE Class 10 Mathematics
Posted by Aryan Tiwari 4 years, 8 months ago
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Ayush Yadav 4 years, 8 months ago
Posted by Aryan Tiwari 4 years, 8 months ago
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Posted by Pari Bafna 4 years, 8 months ago
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Anu Sharma 4 years, 8 months ago
Posted by Anjali Kumari Saha 4 years, 8 months ago
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Gaurav Seth 4 years, 8 months ago
Answer:
Each altitude of the equilateral triangle is equal to
Thus,
To find:
Each of its altitudes = ?
Solution:
Given : ABC is an equilateral triangle of side 2a.
In equilateral triangle, △ADB = △ADC
& ∠ADB = ∠ADC (Both 90 degree as AD ⊥ BC)
Thus, △ ADB ≅ △ ADC (By R. H. S. Congruency)
As per CPCT i.e. they are corresponding parts of congruent triangle,
BD = DC
Using Pythagoras theorem,
Hence,
Thus, the altitudes of the given equilateral triangle is equal to
Posted by Anjishth Bharti 4 years, 8 months ago
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Md Kamran 4 years, 8 months ago
Anjali Kumari Saha 4 years, 8 months ago
Posted by Sunita Devi 4 years, 8 months ago
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Posted by Mehul Kedia 4 years, 8 months ago
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Gaurav Seth 4 years, 8 months ago
The multiples of 9 lying between 300 and 700 are 306, 315,………, 693.
This is an AP with a = 306, d = 9 and l = 693.
Suppose these are n terms in the AP. Then,
Posted by Basamma.S. Naganagoudra Naganagoudra 4 years, 8 months ago
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Posted by Naina Choudhary. 4 years, 8 months ago
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Simrat Kaur 4 years, 8 months ago
Himanshu Singh 4 years, 8 months ago
Posted by Naina Choudhary. 4 years, 8 months ago
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Gaurav Seth 4 years, 8 months ago
Types Of Polynomials
Polynomials can be classified based on:
a) Number of terms
b) Degree of the polynomial.
Types of polynomials based on the number of terms
a) Monomial – A polynomial with just one term. Example: 2x, 6x2, 9xy
b) Binomial – A polynomial with two terms. Example: 4x2+x, 5x+4
a) Trinomial – A polynomial with three terms. Example: x2+3x+4
Types of Polynomials based on Degree
Linear Polynomial
A polynomial whose degree is one is called a linear polynomial.
For example, 2x+1 is a linear polynomial.
Quadratic Polynomial
A polynomial of degree two is called a quadratic polynomial
Cubic Polynomial
A polynomial of degree three is called a cubic polynomial.
For example, 2x3+5x2+9x+15 is a cubic polynomial.
Posted by Naina Choudhary. 4 years, 8 months ago
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Posted by Sona Budakoti 4 years, 8 months ago
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Gaurav Seth 4 years, 8 months ago
Given,
Prove that there is no rational number whose square is
Let's assume that , where
and
and
are co-prime.
Then we have,
So,
⇒
This implies that is even.
Then,
So,
⇒
⇒
Thus,
⇒
⇒
Then,
∴
which contradicts and
being co-prime.
Therefore, is irrational.
Posted by Sachin Gurjar 4 years, 8 months ago
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Posted by Alisha. Afreen 4 years, 8 months ago
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Posted by Alisha. Afreen 4 years, 8 months ago
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Alisha. Afreen 4 years, 8 months ago
Posted by Sonukishore Kamat 4 years, 8 months ago
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Gaurav Seth 4 years, 8 months ago
एक चेक एक कागज होता है जो बैंक को उस व्यक्ति के खाते से उस व्यक्ति को एक विशिष्ट राशि का भुगतान करने का निर्देश देता है जिसके नाम पर चेक बनाया गया है
A cheque is a paper instructing the bank to pay a specific amount from the person’s account to the person in whose name the cheque has been made.
Posted by Ayush Gupta 4 years, 8 months ago
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Gaurav Seth 4 years, 8 months ago
first let the points be
A(4,-1),B(-2,-3)
first let us take the ratio as 1:2 and later 2:1 since its trisection .
let the point joining A and B be P(x,y)
Step-by-step explanation:
P = (1*-2+2*4/1+2 , 1*-3+2*-1/1+2)
= (-2+8/3 , -3-2/3)
= (6/3 , -5/3)
P = (2 , -5/3)
now let ratio be 2:1
P = (2*-2+1*4/3 , 2*-3+1*-1/3)
= (-4+4/3 , -6-1/3)
= (0/3 , -7/3)
P = (0 , -7/3)
Posted by Arohi Sinha 4 years, 8 months ago
- 2 answers
Gaurav Seth 4 years, 8 months ago
Let BD = river
AB = CD = palm trees = h
BO = x
OD = 80 - x
In ∆ABO,
tan60˚ = hxhx
√3 = hxhx ---- (1)
H = √3x
In ∆CDO,
tan30˚ = h80−xh80−x
13√13 = h80−xh80−x --- (2)
Solving (1) and (2), we get
x = 20
H = √3x = 34.6
The height of the trees = h = 34.6m
BO = x = 20m
DO = 80 - x
= 80 - 20 = 60m
Posted by Kumar Vaibhav 4 years, 8 months ago
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Posted by Mohi Soni 4 years, 8 months ago
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Gaurav Seth 4 years, 8 months ago
In order to find the mean value, we will use direct method because the numerical value of fi and xi are small.
Find the midpoint of the given interval using the formula.
Midpoint (xi) = (upper limit + lower limit)/2
| No. of plants
(Class interval) |
No. of houses
Frequency (fi) |
Mid-point (xi) | fixi |
| 0-2 | 1 | 1 | 1 |
| 2-4 | 2 | 3 | 6 |
| 4-6 | 1 | 5 | 5 |
| 6-8 | 5 | 7 | 35 |
| 8-10 | 6 | 9 | 54 |
| 10-12 | 2 | 11 | 22 |
| 12-14 | 3 | 13 | 39 |
| Sum fi = 20 | Sum fixi = 162 |
The formula to find the mean is:
Mean = x̄ = ∑fi xi /∑fi
= 162/20
= 8.1
Therefore, the mean number of plants per house is 8.1
Click for more:<a data-ved="2ahUKEwi37NKSyujtAhVBfisKHdgVAYkQFjAAegQIBRAC" href="https://mycbseguide.com/blog/ncert-solutions-for-class-10-maths-exercise-14-1/" ping="/url?sa=t&source=web&rct=j&url=https://mycbseguide.com/blog/ncert-solutions-for-class-10-maths-exercise-14-1/&ved=2ahUKEwi37NKSyujtAhVBfisKHdgVAYkQFjAAegQIBRAC" rel="noopener" target="_blank">NCERT Solutions for Class 10 Maths Exercise 14.1 ...</a>
Posted by Miss Salini 4 years, 8 months ago
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Gaurav Seth 4 years, 8 months ago
Consecutive numbers are numbers that follows each other in order.
Define the numbers:
Find the sum of the squares of these 3 number:
Given that the sum is equal to 110:
Find the numbers:
Answer: The smallest positive integer is 5.
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Parul Yadav 4 years, 8 months ago
1Thank You