Focus Classes - Maths Class 9 and 10 's video: Class 10 Maths Ex 8 2 Q4 Trigonometry Ncert CBSE State whether the following are true or false

Maths Class 10 Introduction to Trigonometry Example -8 Exercise-8.2, Q.No.-4 4. State whether the following are true or false. Justify your answer. (i) sin (A + B) = sin A + sin B. (ii) The value of sin θ increases as θ increases. (iii) The value of cos θ increases as θ increases. (iv) sin θ = cos θ for all values of θ. (v) cot A is not defined for A = 0°. 🔶We are supposed to cover NCERT Book, NCERT Exemplar Questions, RD Sharma Questions, RD Sharma Examples, RS Agarwal, Previous Year's Papers, Most Repeated Questions in Board Exam, Sample Papers, Important Questions from different Board Papers, AMU - Entrance Papers, Extra questions, HOTS from Every chapter 🔶Visit our Playlists- Extra Questions (Most Important Questions) 👉https://bit.ly/2JtCBnL Chapter 1: Real Numbers 👉https://bit.ly/3dIG9k2 Chapter 2: Polynomials 👉https://bit.ly/33ZTM9X Chapter 3: Pair of linear Equations in Two Variables 👉https://bit.ly/2UxsZ1R Chapter 4: Quadratic Equations 👉https://bit.ly/3bxIgoW Chapter 5: Arithmetic Progression 👉https://bit.ly/2wR6oEi Chapter 6: Triangles 👉https://bit.ly/2QXb828 Chapter 7: Coordinate Geometry 👉https://bit.ly/2UTybfl Chapter 8: Introduction to Trigonometry 👉https://bit.ly/3ayeZKz Chapter 9: Some Applications of Trigonometry 👉https://bit.ly/2V3RrXJ Chapter 10: Circles 👉https://bit.ly/2xyBLn3 Chapter 11: Constructions 👉https://bit.ly/39wPDLV Chapter 12: Area Related to Circles 👉https://bit.ly/3aywDOs Chapter 13: Surface Areas and Volumes 👉https://bit.ly/3dLOtiK Chapter 14: Statistics 👉https://bit.ly/2w2OZrT ◾Deepak Rajoria (Maths Teacher) ◾Focus Classes , , , -8, , Best Coaching Institute in Aligarh, Best Maths Classes in Aligarh, Best YouTube Channel From Aligarh for Spoken English and Mathematics, List of Important Questions for Board Exam from Trigonometry Class 10, Best English Speaking Classes in Aligarh, Best English Trainer in Aligarh, Best English Speaking Course in Aligarh YOUR QUERIES : Introduction to Trigonometry Important Question from Trigonometry List of Important Questions from Chapter 8 Trigonometry Trigonometry Class in Hindi Ncert book chapter 8 Maths Ncert book Questions from Chapter-8 Maths NCERT Book Important Questions for board exam RD Sharma Question from Trigonometry Class 10 Ncert Exemplar Questions Class 10 from Trigonometry Trignometric Ratios how to prove trigonometric identities sin^2 theta + cos^2 theta =1 1+ tan^2 theta =sec^2 theta 1+cot^2 theta =cosec^2 theta most important question from Trigonometry Extra Questions from Trigonometry