No products in the cart.

For what value of 'k' will …

CBSE, JEE, NEET, CUET

CBSE, JEE, NEET, CUET

Question Bank, Mock Tests, Exam Papers

NCERT Solutions, Sample Papers, Notes, Videos

For what value of 'k' will the following system of linear equations has no solution? 3x + y = 1 (2k – 1)x + (k – 1)y = 2k + 1.

Posted by Cheshta Garg 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Shubham Sinha 5 months ago

The given pair of equations are : - 3x + y = 1 ........... (1) (2k−1)x + (k−1)y = 2k + 1 .......... (2) Now rearranging eq1 and eq2 will get 3x + y − 1 = 0 ........... (3) (2k−1)x + (k−1)y − (2k+1) = 0 ........ (4) Now compare with a1 = 3, b1 = 1, c1 = −1 a2 = 2k−1, b2 = k−1, c2 = −(2k+1) Now we get a1a2 = 32k−1 , b1b2 = 1k−1 , c1c2 = −1−(2k+1) Now will take a1a2 = b1b2 ⇒32k−1 = 1k−1 ⇒3k−3 = 2k−1 ⇒3k−2k = −1+3 ⇒k = 2 Hence k = 2 is the value.

ANSWER

http://mycbseguide.com/examin8/

Related Questions

Venu Gopal has twice

Posted by Lakshay Kumar 3 days, 7 hours ago

CBSE > Class 10 > Mathematics

0 answers

Water

Posted by S Prajwal 1 week, 3 days ago

CBSE > Class 10 > Mathematics

0 answers

If 1/2 is a root of equation x^2+kx- 5/4 =0 , then what is the value of k

Posted by Parinith Gowda Ms 3 months, 3 weeks ago

CBSE > Class 10 > Mathematics

1 answers

X-y=5

Posted by Kishan Thakur 1 month, 2 weeks ago

CBSE > Class 10 > Mathematics

1 answers

(A + B )²

Posted by Abhishek Gupta 3 months, 3 weeks ago

CBSE > Class 10 > Mathematics

1 answers

Find the sum of the odd no. Between 0 and 50

Posted by Kanika . 1 month, 4 weeks ago

CBSE > Class 10 > Mathematics

1 answers

sin60° cos 30°+ cos60° sin 30°

Posted by Vanshika Bhatnagar 3 months, 3 weeks ago

CBSE > Class 10 > Mathematics

2 answers

Find cosec 30 degree and cause 60 degree geometrical

Posted by Hari Anand 1 week, 3 days ago

CBSE > Class 10 > Mathematics

0 answers

Find the nature of quadratic equation x^2 +x -5 =0

Posted by Parinith Gowda Ms 3 months, 3 weeks ago

CBSE > Class 10 > Mathematics

0 answers

Is it possible to design a rectangular mango Grove whose length is twice it's breadth, and the area is 800m²? If so, find it's length and breadth

Posted by Akshata Choukse 3 months, 3 weeks ago

CBSE > Class 10 > Mathematics

0 answers

myCBSEguide App

myCBSEguide

Trusted by 1 Crore+ Students

Test Generator

Test Generator

Create papers online. It's FREE.

CUET Mock Tests

CUET Mock Tests

75,000+ questions to practice only on myCBSEguide app

Google Play

Download myCBSEguide App