Advertisements
Advertisements
Question
Find the value 'x', if:
Advertisements
Solution
In right ΔABC,
tan30° = `"AB"/"BC"`
⇒ `(1)/sqrt(3) = (10)/x`
⇒ x = `10sqrt(3)"cm"`.
APPEARS IN
RELATED QUESTIONS
If 2 sin x° − 1 = 0 and x° is an acute angle; find:
- sin x°
- x°
- cos x° and tan x°.
If sin 3A = 1 and 0 < A < 90°, find sin A
Find the magnitude of angle A, if 2 sin A cos A - cos A - 2 sin A + 1 = 0
Calculate the value of A, if cos 3A. (2 sin 2A - 1) = 0
If `sqrt(3)` sec 2θ = 2 and θ< 90°, find the value of
cos 3θ
If `sqrt(3)` sec 2θ = 2 and θ< 90°, find the value of
cos2 (30° + θ) + sin2 (45° - θ)
In a rectangle ABCD, AB = 20cm, ∠BAC = 60°, calculate side BC and diagonals AC and BD.
Find x and y, in each of the following figure:
Evaluate the following: tan(78° + θ) + cosec(42° + θ) - cot(12° - θ) - sec(48° - θ)
Evaluate the following: `(sin0° sin35° sin55° sin75°)/(cos22° cos64° cos58° cos90°)`
