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Prove that: 3. (cos x + cos y)^2 + (sin x – sin y)^2 = 4 cos^2 x + y/2 Prove that: 3. (cos x + cos y)^2 + (sin x – sin y)^2 = 4 cos^2 x + y/2 October 24, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class [...]

Prove that: 2. (sin 3x + sin x) sin x + (cos 3x – cos x) cos x = 0 Prove that: 2. (sin 3x + sin x) sin x + (cos 3x – cos x) cos x = 0 October 24, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class [...]

Prove that: 1. 2cos π/13 cos 9π/13 + cos 3π/13 + cos 5π/13 = 0 Prove that: 1. 2cos π/13 cos 9π/13 + cos 3π/13 + cos 5π/13 = 0 October 24, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 ,

Find the general solution for each of the following equations: 9. sin x + sin 3x + sin 5x = 0 Find the general solution for each of the following equations: 9. sin x + sin 3x + sin 5x = 0 October 24, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT [...]

Find the general solution for each of the following equations: 8. sec^2 2x = 1– tan 2x Find the general solution for each of the following equations: 8. sec^2 2x = 1– tan 2x October 24, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 ,

Find the general solution for each of the following equations: 7. sin 2x + cos x = 0 Find the general solution for each of the following equations: 7. sin 2x + cos x = 0 October 24, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 ,

Find the general solution for each of the following equations: 6. cos 3x + cos x – cos 2x = 0 Find the general solution for each of the following equations: 6. cos 3x + cos x – cos 2x = 0 October 24, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT [...]

Find the general solution for each of the following equations: 5. cos 4 x = cos 2 x Find the general solution for each of the following equations: 5. cos 4 x = cos 2 x October 24, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 ,

Find the principal and general solutions of the following equations: 4. cosec x = – 2 Find the principal and general solutions of the following equations: 4. cosec x = – 2 October 24, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 ,

Find the principal and general solutions of the following equations: 3. cot x = − sqrt 3 Find the principal and general solutions of the following equations: 3. cot x = − sqrt 3 October 24, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 ,