Chapter 8 – Introduction to Trigonometry
Given that sinθ = a/b, then cos theta is equal to
25
Nov
Given that sinθ = a/b, then cos theta is equal to Given that sinθ = a/b then cos theta is equal to November 25, 2020 Category: Chapter 8 - Introduction to Trigonometry , Maths , NCERT Class 10 ,
The value of the expression [cosec (75° + θ) – sec (15° – θ) – tan (55° + θ) + cot (35° – θ)] is
25
Nov
The value of the expression [cosec (75° + θ) – sec (15° – θ) – tan (55° + θ) + cot (35° – θ)] is The value of the expression [cosec (75° + θ) – sec (15° – θ) – tan (55° + θ) + cot (35° – θ)] is November 25, 2020 Category: Chapter [...]
If sin A = 1/2, then the value of cot A is
25
Nov
If sin A = 1/2, then the value of cot A is If sin A = 1/2 then the value of cot A is November 25, 2020 Category: Chapter 8 - Introduction to Trigonometry , Maths , NCERT Class 10 ,
If cos A = 4/5 , then the value of tan A is
25
Nov
If cos A = 4/5 , then the value of tan A is If cos A = 4/5 then the value of tan A is November 25, 2020 Category: Chapter 8 - Introduction to Trigonometry , Maths , NCERT Class 10 ,
Prove that sin theta – cos theta + 1 / sin theta + cos theta – 1 = 1/sec theta – tan theta, using the identity sec^2 theta = 1 + tan^2 theta.
05
Oct
Prove that sin theta – cos theta + 1 / sin theta + cos theta – 1 = 1/sec theta – tan theta, using the identity sec^2 theta = 1 + tan^2 theta. Prove that sin theta - cos theta + 1 / sin theta + cos theta - 1 = 1/sec theta - tan [...]
Prove that: cot A – cos A / cot A + cos A = cosec A – 1 / cosec A + 1
05
Oct
Prove that: cot A – cos A / cot A + cos A = cosec A – 1 / cosec A + 1 Prove that: cot A - cos A / cot A + cos A = cosec A - 1 / cosec A + 1 October 5, 2020 Category: Chapter 8 - Introduction to [...]
Prove that sec a (1-sin a) (sec a + tan a) =1
05
Oct
Prove that sec a (1-sin a) (sec a + tan a) =1 Prove that sec a (1-sin a) (sec a + tan a) =1 October 5, 2020 Category: Chapter 8 - Introduction to Trigonometry , Maths , NCERT Class 10 ,
Express the ratios cos A, tan A and sec A in terms of sin A.
05
Oct
Express the ratios cos A, tan A and sec A in terms of sin A. Express the ratios cos A tan A and sec A in terms of sin A. October 5, 2020 Category: Chapter 8 - Introduction to Trigonometry , Maths , NCERT Class 10 ,
Express cot 85° + cos 75° in terms of trigonometric ratios of angles between 0° and 45°.
05
Oct
Express cot 85° + cos 75° in terms of trigonometric ratios of angles between 0° and 45°. Express cot 85° + cos 75° in terms of trigonometric ratios of angles between 0° and 45°. October 5, 2020 Category: Chapter 8 - Introduction to Trigonometry , Maths , NCERT Class 10 ,
If sin 3a = cos(a – 26 degree),where 3a is an acute angle then find the value of a.
05
Oct
If sin 3a = cos(a – 26 degree),where 3a is an acute angle then find the value of a. If sin 3a = cos(a - 26 degree) where 3a is an acute angle then find the value of a. October 5, 2020 Category: Chapter 8 - Introduction to Trigonometry , Maths , NCERT Class 10 [...]