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
100 views
in Trigonometry by (79.1k points)
closed by
यदि `sin(60^(@)-theta)=cos(Phi-30^(@))` है तो `tan(Phi-theta)` का मान क्या होगा (मान के की `theta` तथा `Phi` दोनों धनात्मक न्यूनकोण है जिसमे `theta lt 60^(@)` और `30^(@)` )है
A. `(1)/(sqrt(3))`
B. 0
C. `sqrt(3)`
D. 1

1 Answer

0 votes
by (88.8k points)
selected by
 
Best answer
Correct Answer - c
`sin(60^(@)-theta)=cos(psi-30^(@))`
`(60^(@)-theta)+(psi-30^(@))=90^(@)`
(if `sin A=cosB` then `A+B=90^(@)`)
` (psi-theta)=90^(@)-30^(@)`
`(psi-theta)=60^(@)`
`tan(psi-theta)=tan 60^(@)`
`tan60^(@)=sqrt(3)`

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

...