Advertisements
Advertisements
प्रश्न
Find the value of 'x' in each of the following:
उत्तर
From the figure, we have
tan45° = `"BC"/"AB"`
⇒ 1 = `(24)/x`
⇒ x = 24.
APPEARS IN
संबंधित प्रश्न
State for any acute angle θ whether cos θ increases or decreases as θ increases.
Solve the following equation for A, if tan 3 A = 1
Solve for x : sin (x + 10°) = `(1)/(2)`
Find the value of 'A', if (1 - cosec A)(2 - sec A) = 0
If θ = 30°, verify that: tan2θ = `(2tanθ)/(1 - tan^2θ)`
Find the value of 'x' in each of the following:
If tan x° = `(5)/(12) . tan y° = (3)/(4)` and AB = 48m; find the length CD.
A ladder is placed against a vertical tower. If the ladder makes an angle of 30° with the ground and reaches upto a height of 18 m of the tower; find length of the ladder.
In the given figure, a rocket is fired vertically upwards from its launching pad P. It first rises 20 km vertically upwards and then 20 km at 60° to the vertical. PQ represents the first stage of the journey and QR the second. S is a point vertically below R on the horizontal level as P, find:
a. the height of the rocket when it is at point R.
b. the horizontal distance of point S from P.
Evaluate the following: tan(78° + θ) + cosec(42° + θ) - cot(12° - θ) - sec(48° - θ)