Question Answers
Sahay Sir > Question Answers
Prove the following: 16. sin5x + sin3x / cos5x + cos3x = tan 4x
22
Oct
Prove the following: 16. sin5x + sin3x / cos5x + cos3x = tan 4x Prove the following: 16. sin5x + sin3x / cos5x + cos3x = tan 4x October 22, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 ,
Prove the following: 16. cos9x – cos5x / sin17x – sin3x = – sin2x/ cos10x
22
Oct
Prove the following: 16. cos9x – cos5x / sin17x – sin3x = – sin2x/ cos10x Prove the following: 16. cos9x - cos5x / sin17x - sin3x = - sin2x/ cos10x October 22, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 ,
Prove the following: 15. cot 4x (sin 5x + sin 3x) = cot x (sin 5x – sin 3x)
22
Oct
Prove the following: 15. cot 4x (sin 5x + sin 3x) = cot x (sin 5x – sin 3x) Prove the following: 15. cot 4x (sin 5x + sin 3x) = cot x (sin 5x – sin 3x) October 22, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 ,
Prove the following: 14. sin2 x + 2 sin 4x + sin 6x = 4 cos^2 x sin 4x
22
Oct
Prove the following: 14. sin2 x + 2 sin 4x + sin 6x = 4 cos^2 x sin 4x Prove the following: 14. sin2 x + 2 sin 4x + sin 6x = 4 cos^2 x sin 4x October 22, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 ,
Prove the following: 13. cos^2 2x – cos^2 6x = sin 4x sin 8x
22
Oct
Prove the following: 13. cos^2 2x – cos^2 6x = sin 4x sin 8x Prove the following: 13. cos^2 2x – cos^2 6x = sin 4x sin 8x October 22, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 ,
Prove the following: 12. sin^2 6x – sin^2 4x = sin 2x sin 10x
22
Oct
Prove the following: 12. sin^2 6x – sin^2 4x = sin 2x sin 10x Prove the following: 12. sin^2 6x – sin^2 4x = sin 2x sin 10x October 22, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 ,
Prove the following: 11. cos(3π/4 + x) – cos(3π/4 – x) = – sqrt2 sin x
22
Oct
Prove the following: 11. cos(3π/4 + x) – cos(3π/4 – x) = – sqrt2 sin x Prove the following: 11. cos(3π/4 + x) - cos(3π/4 - x) = - sqrt2 sin x October 22, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 ,
Prove the following: 10. sin (n + 1)x sin (n + 2)x + cos (n + 1)x cos (n + 2)x = cos x
22
Oct
Prove the following: 10. sin (n + 1)x sin (n + 2)x + cos (n + 1)x cos (n + 2)x = cos x Prove the following: 10. sin (n + 1)x sin (n + 2)x + cos (n + 1)x cos (n + 2)x = cos x October 22, 2021 Category: Chapter 3 - [...]
Prove the following: 9. cos(3π/2 +x) cos (2π + x) [cot(3π/2 – x) + cot (2π + x)] = 1
22
Oct
Prove the following: 9. cos(3π/2 +x) cos (2π + x) [cot(3π/2 – x) + cot (2π + x)] = 1 Prove the following: 9. cos(3π/2 +x) cos (2π + x) [cot(3π/2 - x) + cot (2π + x)] = 1 October 22, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class [...]
Prove the following: 8. cos(π + x) cos (-x) / sin (π + x) cos (π/2 + x) = cot^2x
22
Oct
Prove the following: 8. cos(π + x) cos (-x) / sin (π + x) cos (π/2 + x) = cot^2x Prove the following: 8. cos(π + x) cos (-x) / sin (π + x) cos (π/2 + x) = cot^2x October 22, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class [...]