## Find the value of tan9° – tan27° – tan63° + tan81°

Topics/Questions discussed in this video: NCERT Exemplar Class 11 Maths Chapter 3 Trigonometry Functions Example 5: Find the value of $\tan 9° – \tan 27° – \tan 63° + \tan 81°$

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## Prove that (sec8θ−1)/(sec4θ−1)=tan8θ/tan2θ

Topics/Questions discussed in this video: NCERT Exemplar Class 11 Maths Chapter 3 Trigonometry Functions Example 6: Prove that $\frac{sec8\theta-1}{sec4\theta-1}=\frac{tan8\theta}{tan2\theta}$

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## Exercise 3.1 Chapter 3 Trigonometric Functions Class 11 Maths

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...

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## One-One, Many-one, Onto, Into Functions Class 12 Maths Chapter 1

Topics/Questions discussed in this video: 00:00:01 Introduction to this part of lecture 00:01:32 One – One or Injective and Many – One 00:22:23 Question 3 Let A = {1, 2, 3}, B = {4, 5, 6, 7} and let f = {(1, 4), (2, 5), (3, 6)} be a function from A to B. Show that f...

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## Exercise 2.2 Inverse Trigonometric Functions Class 12 Maths

Topics/Questions discussed in this video: 00:00:00 Introduction for inverse trigonometry identities 00:03:34 Derivation of all inverse trigonometric identities Prove the following: 00:15:14 NCERT Solutions Exercise 2.2 Question 1 [latex]3{\sin ^{ - 1}}x = {\sin ^{ -...

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## Continuity And Differentiability Class 12 Maths Chapter 5 Exercise 5.1

Topics/Questions discussed in this video: I am discussing about how to check continuity and discontinuity in a graph of a function through limits. I am using my own assignments to explain NCERT Exercise 5.1 Questions as well as Extra (HOTS) question for explanation...

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## Exercise 5.4 & 5.5 Continuity And Differentiability Class 12 Maths Chapter 5

Topics/Questions discussed in this video: In this lecture, I am discussing few questions based on derivatives of logarithmic and exponential functions. Also, when and how to use Logarithms in Differentiation? NCERT EXERCISE 5.4 Differentiate the following w.r.t. x:...

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## Exercise 6.2 Application of Derivatives Class 12 Maths Chapter 6

Topics/Questions discussed in this video: In this lecture, I am discussing how to find intervals in which the given function is increasing and decreasing. Also, questions based on this topic from NCERT Exercise 6.2 Questions discussed in this lecture: NCERT EXERCISE...

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