Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
74 views
in Mathematics by (89.4k points)
closed by
यदि `ahati+hatj+hatk, hati+bhatj+hatk, hati+hatj+chatk` संतलिये सदिश है तब a+b+c-abc का मान क्या है

1 Answer

0 votes
by (89.4k points)
selected by
 
Best answer
`therefore` सदिश `ahati+hatj+hatk, hati+bhatj+hatk` तथा `hatj+hatj+chatk` संतलिये सदिश है
`therefore |{:(,a,1,1),(,1,b,c),(,1,1,c):}|=0`
`R_(1)` के सापेक्ष प्राप्त करने पर, a(bc-1)-1(c-1)+1(1-b)=0
`Rightarrow abc-a-c+1+1-b=0`
`Rightarrow a+b+c-abc=2`

Related questions

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

...