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Ask QuestionPosted by Sagar Hatwar 5 years ago
- 3 answers
Yogita Ingle 5 years ago
cosec(90⁰ - θ)=secθ
Cosec (90-62) = sec 62⁰
cosec 28⁰ = sec 62⁰
sec62⁰/cosec28⁰ = sec62⁰/sec 62⁰ = 1
Posted by Pooja Mishra 5 years ago
- 3 answers
Sakshi Jagtap 5 years ago
Posted by Snehalata Behera 5 years ago
- 4 answers
Sandeep A W 5 years ago
Loveneesh Kumar 5 years ago
Aakib Khan 5 years ago
Posted by Akash K 5 years ago
- 5 answers
Yogita Ingle 5 years ago
This is related to concept of numbers in the unit digits place of the power of natural number.
The power of 6 any index repetation 6
i.e (6)(anypower................) the last digit will be 6 only.
Example
1) 61=6
2) 62 = 36
3) 63 = 216
So, the last digit in the expansion of 6100 is 6.
Posted by Navdeep Singh 5 years ago
- 2 answers
Sakshi Jagtap 5 years ago
Posted by Swayam Avhad 5 years, 1 month ago
- 1 answers
Posted by Deepika Choudhary 5 years, 1 month ago
- 0 answers
Posted by Devansh Singh 5 years, 1 month ago
- 1 answers
Gaurav Seth 5 years, 1 month ago
Let the four numbers in A.P. be
.
Given,
Given,
When a = 5 and d = 2, we get
When a = 5 and d = –2, we get
Thus, four numbers in A.P. are –1, 3, 7 and 11.
Posted by Rishabh Pawar 5 years, 1 month ago
- 2 answers
Posted by Rishabh Pawar 5 years, 1 month ago
- 2 answers
Posted by Chand Kumar 5 years, 1 month ago
- 2 answers
Sakshi Jagtap 5 years, 1 month ago
Shakti Singh Rathore 5 years, 1 month ago
Posted by Shakti Singh Rathore 5 years, 1 month ago
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Shakti Singh Rathore 5 years, 1 month ago
Posted by Nandini Soni 5 years, 1 month ago
- 4 answers
Akshat Mohanty 5 years, 1 month ago
Posted by Vivek Raturi 5 years, 1 month ago
- 1 answers
Posted by Keeravani . 5 years, 1 month ago
- 3 answers
Sakshi Jagtap 5 years, 1 month ago
Gaurav Seth 5 years, 1 month ago
Let E be the event of happening of rain
P(E) is given as 0.85
E¯ ⟶ not happening of rain
P(E¯) = 1 – P(E) = 1 – 0.85 = 0.15
∴ P(not happening of rain) = 0.15
Posted by Gopal Roy 5 years, 1 month ago
- 0 answers
Posted by A . 5 years, 1 month ago
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Posted by Priya Kumari 5 years, 1 month ago
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Posted by Mahak Sadhya 5 years, 1 month ago
- 2 answers
Yogita Ingle 5 years, 1 month ago
2x + 3y = 7
2ax + (a + b) y = 28
If two equations has infinite solutions, then,
a1 / a2 = b1 / b2 = c1 /c2
2 / 2a = 3 / a+b = -7 / -28
1/a = 3/a+b = 1/4
Now,
1/a = 1/4
a = 4
And
3/a+b = 1/4
12 = 4 + b
12 - 4 = b
b = 8
Thus,
a = 4
b = 8
So, b = 2a
Posted by Akash K 5 years, 1 month ago
- 1 answers
Yogita Ingle 5 years, 1 month ago
( 17 x 11 x 2 ) + ( 17 x 11 x 5 )
By taking ( 17 x 11 ) common ,
= ( 17 x 11 ) ( 2 + 5 )
= ( 17 x 11 ) ( 7 )
= 17 x 11 x 7.
If any number can be represented in the form of product of prime numbers then that number is composite number.
Hence , ( 17 x 11 x 2 ) + ( 17 x 11 x 5 ) is a composite number.
Posted by Shivi Rajput 5 years, 1 month ago
- 1 answers
Sakshi Jagtap 5 years, 1 month ago
Posted by Shivi Rajput 5 years, 1 month ago
- 3 answers
Shambhu Shinde 5 years, 1 month ago
Gaurav Seth 5 years, 1 month ago
A n s w e r
Prime factors of 378 = 2 × 3 × 3 × 3 × 7
Prime factors of 180 = 2 × 2 × 3 × 3 × 5
Prime factors of 420 = 2 × 2 × 3 × 5 × 7
So, HCF of 378, 180 and 420 is 2 × 3 = 6
And LCM of 378, 180 and 420 is 2 × 2 × 3 × 3 × 3 × 5 × 7 = 3780
Posted by Spoorti Shrinivas 5 years, 1 month ago
- 1 answers
Gaurav Seth 5 years ago
9x2 - 9(a + b) x + (2a2+ 5ba + 2b2) = 0
9x2 - 9(a + b)x + (2a + b) (a + 2b) = 0
9x2 - 3(2a + b)x - 3 (a + 2b)x + (2a + b) (a + 2b) = 0
3x[3x - (2a + b)] - (a + 2b) [3x - (2a + b)] = 0
[3x - (2a + b)] [3x - (a + 2b)] = 0
x = 
Posted by Randheer Singh 5 years, 1 month ago
- 1 answers
Gaurav Seth 5 years ago
Answer:
The value of k is 1.
Step-by-step explanation:
Let the zeros of the polynomial be α and 1\α
We have=
To know :
Polynomial is an expression which consists of variables and coefficients in an expression
For example 7x+1, 3x+1/6
A polynomial involves only the operations must be addition, subtraction and multiplication
Polynomials occurs in many aspects of mathematics and science concepts.
Here In mathematics it is used a polynomial equations.
Product of zeros=c/a [c=k a=1]
α x 1\α =k/1 [ roots of the polynomial is given by alpha and beta]
k=1
Posted by Mahantesh Kajagar 5 years, 1 month ago
- 0 answers
Posted by Veena Rankawat 5 years, 1 month ago
- 1 answers
Yogita Ingle 5 years, 1 month ago
Given,
We know,
Hence, the probability of 'not E' is 0.95
Posted by Chandan Akharia 5 years, 1 month ago
- 0 answers
Posted by Abhishek Mandal 5 years, 1 month ago
- 1 answers
Posted by Charu D 5 years, 1 month ago
- 1 answers
Gaurav Seth 5 years, 1 month ago
1. Form the pair of linear equations in the following problems, and find their solutions graphically.
(i) 10 students of Class X took part in a Mathematics quiz. If the number of girls is 4 more than the number of boys, find the number of boys and girls who took part in the quiz.
(ii) 5 pencils and 7 pens together cost 50, whereas 7 pencils and 5 pens together cost 46. Find the cost of one pencil and that of one pen.
Solution:
(i)Let there are x number of girls and y number of boys. As per the given question, the algebraic expression can be represented as follows.
x +y = 10
x– y = 4
Now, for x+y = 10 or x = 10−y, the solutions are;
For x – y = 4 or x = 4 + y, the solutions are;
The graphical representation is as follows;
Click on the given link to continue
<a href="https://mycbseguide.com/blog/ncert-solutions-for-class-10-maths-exercise-3-2/" ping="/url?sa=t&source=web&rct=j&url=https://mycbseguide.com/blog/ncert-solutions-for-class-10-maths-exercise-3-2/&ved=2ahUKEwj2r_u647_sAhWOwjgGHT1jADUQFjAEegQIBBAC" rel="noopener" target="_blank">NCERT Solutions for Class 10 Maths Exercise 3.2</a>
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Itachi Uchiha ? 5 years ago
1Thank You