Topics/Questions discussed in this video: NCERT Exemplar Class 11 Maths Chapter 3 Trigonometry Functions Example 5: Find the value of [latex]\tan 9° – \tan 27° – \tan 63° + \tan 81°[/latex]
Topics/Questions discussed in this video: NCERT Exemplar Class 11 Maths Chapter 3 Trigonometry Functions Example 6: Prove that [latex]\frac{sec8\theta-1}{sec4\theta-1}=\frac{tan8\theta}{tan2\theta}[/latex]
Topics/Questions discussed in this video: 00:21:17 Meaning and origin of Word Trigonometry 00:24:47 Basics of Angles: Positive angles, negative angles, vertex with animations 00:34:57 Measuring an angle00:36:07 Basics of Degree measure, minutes and seconds 00:40:57...