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
112 views
in Mathematics by (36.2k points)
closed by

सिद्ध करें कि बिंदु \(\vec{a}-2 \vec{b}+3\vec{ c}, 2 \vec{a}+3 \vec{b}-4 \vec{c},-7 \vec{b}+10 \vec{c}\) समरेख है।

1 Answer

+1 vote
by (35.1k points)
selected by
 
Best answer

चूँकि \(\vec{a}-2 \vec{b}+3\vec{ c}, 2 \vec{a}+3 \vec{b}-4 \vec{c},-7 \vec{b}+10 \vec{c}\)समरेख है।

\(\therefore \left|\begin{array}{ccc} 1 & -2 & 3 \\ 2 & 3 & 4 \\ 0 & -1 & 10 \end{array}\right|=1(30-28)-2(-20+21) \)

\(=2-2\)

\(=0\)

चूँकि इस बिंदु का determinant शून्य है।

अतः बिंदु समरेख हैं।

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

...