Trigonometry class 9 Trigonometric Ratios of Standard angle Part1

[@NishaKr-d4o]

Nice video

[@enjoy34515]

Thanks

[@damplip26]

7:00 sec theta =1/cos theta not 1/cosec theta and same goes for cosec theta The relations you provided are definitely correct but only when sin theta × cos theta =1 Which happens when theta =a specific value like 45°