Chapter 8 – Introduction to Trigonometry
Prove that sec^2θ + cosec^2θ−−√ = tanθ + cot θ
25
Nov
Prove that sec^2θ + cosec^2θ−−√ = tanθ + cot θ Prove that sec^2θ + cosec^2θ−−√ = tanθ + cot θ November 25, 2020 Category: Chapter 8 - Introduction to Trigonometry , Maths , NCERT Class 10 ,
If cosecθ + cotθ = p, then prove that cosθ = P^2−1/P^2+1
25
Nov
If cosecθ + cotθ = p, then prove that cosθ = P^2−1/P^2+1 If cosecθ + cotθ = p then prove that cosθ = P^2−1/P^2+1 November 25, 2020 Category: Chapter 8 - Introduction to Trigonometry , Maths , NCERT Class 10 ,
Show that tan^4θ + tan^2θ = sec^4θ – sec^2θ.
25
Nov
Show that tan^4θ + tan^2θ = sec^4θ – sec^2θ. Show that tan^4θ + tan^2θ = sec^4θ – sec^2θ. November 25, 2020 Category: Chapter 8 - Introduction to Trigonometry , Maths , NCERT Class 10 ,
An observer 1.5 metres tall is 20.5 metres away from a tower 22 metres high. Determine the angle of elevation of the top of the tower from the eye of the observer.
25
Nov
An observer 1.5 metres tall is 20.5 metres away from a tower 22 metres high. Determine the angle of elevation of the top of the tower from the eye of the observer. An observer 1.5 metres tall is 20.5 metres away from a tower 22 metres high. Determine the angle of elevation of the top [...]
Show that cos^2 (45 degree + θ) + cos^2 (45 degree – θ)/ tan (60 degree + θ) tan (30 degree – θ) = 1
25
Nov
Show that cos^2 (45 degree + θ) + cos^2 (45 degree – θ)/ tan (60 degree + θ) tan (30 degree – θ) = 1 Show that cos^2 (45 degree + θ) + cos^2 (45 degree - θ)/ tan (60 degree + θ) tan (30 degree - θ) = 1 November 25, 2020 Category: Chapter [...]
If 2sin^2θ – cos^2θ = 2, then find the value of θ.
25
Nov
If 2sin^2θ – cos^2θ = 2, then find the value of θ. If 2sin^2θ – cos^2θ = 2 then find the value of θ. November 25, 2020 Category: Chapter 8 - Introduction to Trigonometry , Maths , NCERT Class 10 ,
Simplify (1 + tan^2θ) (1 – sinθ) (1 + sinθ)
25
Nov
Simplify (1 + tan^2θ) (1 – sinθ) (1 + sinθ) Simplify (1 + tan^2θ) (1 – sinθ) (1 + sinθ) November 25, 2020 Category: Chapter 8 - Introduction to Trigonometry , Maths , NCERT Class 10 ,
A ladder 15 metres long just reaches the top of a vertical wall. If the ladder makes an angle of 60° with the wall, find the height of the wall.
25
Nov
A ladder 15 metres long just reaches the top of a vertical wall. If the ladder makes an angle of 60° with the wall, find the height of the wall. A ladder 15 metres long just reaches the top of a vertical wall. If the ladder makes an angle of 60° with the wall find [...]
If √3 tan θ = 1, then find the value of sin^2θ – cos^2 θ.
25
Nov
If √3 tan θ = 1, then find the value of sin^2θ – cos^2 θ. If √3 tan θ = 1 then find the value of sin^2θ – cos^2 θ. November 25, 2020 Category: Chapter 8 - Introduction to Trigonometry , Maths , NCERT Class 10 ,
Find the angle of elevation of the sun when the shadow of a pole h metres high is √3 h metres long.
25
Nov
Find the angle of elevation of the sun when the shadow of a pole h metres high is √3 h metres long. Find the angle of elevation of the sun when the shadow of a pole h metres high is √3 h metres long. November 25, 2020 Category: Chapter 8 - Introduction to Trigonometry , [...]