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
111 views
in Mathematics by (93.6k points)
closed by
यदि `A={1,2,3,4,5}` तथा `f:AtoA` व् `g:AtoA,` निम्न प्रकार परिभाषित फलां है ---
`f(1)=2,f(2)=3,f(3)=4,f(4)=5,f(5)=1` तथा
`g(1)=4,g(2)=1,g(3)=1,g(4)=2,g(5)=3`
fog तथा gof के मान ज्ञात कीजिय |

1 Answer

0 votes
by (92.3k points)
selected by
 
Best answer
प्रश्नानुसार,
`f(1)=2,f(2)=3,f(3)=4,f(4)=5,f(5)=1`
तथा `g(1)=4,g(2)=1,g(3)=1,g(4)=2,g(5)=3`
tab,
`fog(1)=f(g(1))=f(4)=5`
`fog(2)=f(g(2))=f(1)=2`
`fog(3)=f(g(3))=f(1)=2`
`fog(4)=f(g(4))=f(2)=3`
व् `fog(5)=f(g(5))=f(3)=4`
atah `fog={(1,5),(2,2),(3,2),(4,3),(5,4)}`
इसी प्रकार
`gof(1)=g(f(1))=g(2)=1`
`gof(2)=g(g(2))=g(3)=1`
`gof(3)=g(f(3))=g(4)=2`
`fog(4)=g(f(4))=g(5)=3`
व् ` gof(5)=g(f(5))=g(1)=4`
अतः `gof={1,1),(2,1),(3,2),(4,3),(5,4)}`

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

...