Use app×
QUIZARD
QUIZARD
JEE MAIN 2026 Crash Course
NEET 2026 Crash Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
135 views
in Mathematics by (45.6k points)

The pair of linear equations 6x - 3y + 10 = 0 and 2x - y + 9 = 0 is

(A) consistent

(B) inconsistent

(C) dependent

(D) none of these

Please log in or register to answer this question.

2 Answers

0 votes
by (45.5k points)

Correct option is: (B) inconsistent

0 votes
by (55.9k points)

Correct option is: (B) inconsistent

\(6 x-3 y+10=0 \)   .....(i)

\( 2 x-y+9=0 \)    .....(ii)

\(6 x-3 y+10=0\)

Comparing with \(a_1 x+b_1 y+c_1=0\)

\( a_1=6, b_1=-3, \ c_1=10 \)   

2x - y + 9 = 0

Comparing with \(a_2 x+b_2 y+c_2=0\)

\(a_2=2,\ b_2=-1, \ c_2=9 \)

\( \frac{a_1}{a_2}=\frac{6}{2}=3 \)

\(\frac{b_1}{b_2}=\frac{-3}{-1}=3 \)

\( \frac{c_1}{c_2}=\frac{10}{9}\)

Since, \( \frac{a_1}{a_2}=\frac{b_1}{b_2} \neq \frac{c_1}{c_2}\)     

So, we have no solution

Therefore, the lines represent the linear equations are parallel.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...