From the following figure, find : (i) y (ii) sin x° (iii) (sec x° - tan x°)(sec x° + tan x°)

(i) In Δ ABC, ⇒ AC2 = AB2 \+ BC2 (∵ AC is hypotenuse) ⇒ 22 = y2 \+ 12 ⇒ 4 = y2 \+ 1 ⇒ y2 = 4 \- 1 ⇒ y2 = 3 ⇒ y = Hence, the value of y = . (ii) sin Hence, sin . (iii) (sec x° - tan x°)(sec x° + tan x°) sec tan Now, (sec x° - tan x°)(sec x° + tan x°) Hence, (sec x° - tan x°)(sec x° + tan x°) = 1.

If sin A - cosec A = 2, the value of sin² A + cosec² A is :
2
0
4
6

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Use the given figure to find :
(i) sin x°
(ii) cos y°
(iii) 3 tan x° - 2 sin y° + 4 cos y°

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In the diagram, given below, triangle ABC is right-angled at B and BD is perpendicular to AC. Find :
(i) cos ∠DBC
(ii) cot ∠DBA

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Mathematics

From the following figure, find :
(i) y
(ii) sin x°
(iii) (sec x° - tan x°)(sec x° + tan x°)

Trigonometric Identities

Related Questions

If sin A - cosec A = 2, the value of sin² A + cosec² A is :
2
0
4
6

Use the given figure to find :
(i) sin x°
(ii) cos y°
(iii) 3 tan x° - 2 sin y° + 4 cos y°

In the diagram, given below, triangle ABC is right-angled at B and BD is perpendicular to AC. Find :
(i) cos ∠DBC
(ii) cot ∠DBA

Mathematics

From the following figure, find :(i) y(ii) sin x°(iii) (sec x° - tan x°)(sec x° + tan x°)

Trigonometric Identities

Related Questions

If sin A - cosec A = 2, the value of sin2 A + cosec2 A is :2046

Use the given figure to find :(i) sin x°(ii) cos y°(iii) 3 tan x° - 2 sin y° + 4 cos y°

In the diagram, given below, triangle ABC is right-angled at B and BD is perpendicular to AC. Find :(i) cos ∠DBC(ii) cot ∠DBA

From the following figure, find :
(i) y
(ii) sin x°
(iii) (sec x° - tan x°)(sec x° + tan x°)

If sin A - cosec A = 2, the value of sin² A + cosec² A is :
2
0
4
6

Use the given figure to find :
(i) sin x°
(ii) cos y°
(iii) 3 tan x° - 2 sin y° + 4 cos y°

In the diagram, given below, triangle ABC is right-angled at B and BD is perpendicular to AC. Find :
(i) cos ∠DBC
(ii) cot ∠DBA