Maths
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 [...]
Prove the following: 7. tan(π/4 + x) / tan(π/4 – x) = (1 + tan x / 1 – tan x)^2
22
Oct
Prove the following: 7. tan(π/4 + x) / tan(π/4 – x) = (1 + tan x / 1 – tan x)^2 Prove the following: 7. tan(π/4 + x) / tan(π/4 - x) = (1 + tan x / 1 - tan x)^2 October 22, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT [...]
Prove the following: 6. cos(π/4-x)cos(π/4-y)-sin(π/4-x)sin(π/4-y) = sin (x+y)
22
Oct
Prove the following: 6. cos(π/4-x)cos(π/4-y)-sin(π/4-x)sin(π/4-y) = sin (x+y) Prove the following: 6. cos(π/4-x)cos(π/4-y)-sin(π/4-x)sin(π/4-y) = sin (x+y) October 22, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 ,
5. Find the value of: (ii) tan 15°
22
Oct
5. Find the value of: (ii) tan 15° 5. Find the value of: (ii) tan 15° October 22, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 ,
5. Find the value of: (i) sin 75°
22
Oct
5. Find the value of: (i) sin 75° 5. Find the value of: (i) sin 75° October 22, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 ,
Prove that: 2sin^2 3π/4 + 2cos^2 π/4 + 2sec^2 π/3 = 10
22
Oct
Prove that: 2sin^2 3π/4 + 2cos^2 π/4 + 2sec^2 π/3 = 10 Prove that: 2sin^2 3π/4 + 2cos^2 π/4 + 2sec^2 π/3 = 10 October 22, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 ,
Prove that: 3. cot^2 π/6 + cosec 5π/6 + 3 tan^2 π/6 = 6
22
Oct
Prove that: 3. cot^2 π/6 + cosec 5π/6 + 3 tan^2 π/6 = 6 Prove that: 3. cot^2 π/6 + cosec 5π/6 + 3 tan^2 π/6 = 6 October 22, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 ,
Prove that: 2. 2sin^2 6/π + cosec^2 7π/6 cos^2 π/3 = 3/2
22
Oct
Prove that: 2. 2sin^2 6/π + cosec^2 7π/6 cos^2 π/3 = 3/2 Prove that: 2. 2sin^2 6/π + cosec^2 7π/6 cos^2 π/3 = 3/2 October 22, 2021 Category: Chapter 3 - Trigonometric Functions , Maths , NCERT Exemplar Class 11 ,