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
123 views
in Trigonometry by (71.9k points)
closed by
Prove that : `sintheta(1+tantheta)+costheta(1+cottheta)=cosectheta+sectheta`

1 Answer

0 votes
by (72.1k points)
selected by
 
Best answer
L.H.S.`=sintheta(1+tantheta)+costheta(1+cottheta)`
`=sintheta(1+tantheta)+costheta(1+(1)/(tantheta))`
`=sintheta(1+tantheta)+costheta(1+(tantheta+1)/(tantheta))`
`=(1+tantheta)[sintheta+(costheta)/((sintheta/(costheta)))]=(1+tantheta)(sintheta+(cos^(2)theta)/(sintheta))`
`(1+(sintheta)/(costheta))((sin^(2)theta+cos^(2)theta)/(sintheta))=(1+(sintheta)/(costheta))((1)/(sintheta))`
`=(1)/(sintheta)+(sintheta)/(costheta)xx(1)/(sintheta)=cosectheta+sectheta=R.H.S.`

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

...