Advertisements
Advertisements
Question
Solve for x : sin (x + 10°) = `(1)/(2)`
Advertisements
Solution
sin (x + 10°) = `(1)/(2)`
sin ( x + 10°) = sin 30°
x + 10° = 30°
x = 20°
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 2 cos 2A = `sqrt3` and A is acute,
find:
(i) A
(ii) sin 3A
(iii) sin2 (75° - A) + cos2 (45° +A)
Use the given figure to find:
(i) tan θ°
(ii) θ°
(iii) sin2θ° - cos2θ°
(iv) Use sin θ° to find the value of x.
If sin 3A = 1 and 0 < A < 90°, find cos 2A
Find the value of 'A', if 2 sin 2A = 1
In the given figure, PQ = 6 cm, RQ = x cm and RP = 10 cm, find
a. cosθ
b. sin2θ- cos2θ
c. Use tanθ to find the value of RQ
In a right triangle ABC, right angled at C, if ∠B = 60° and AB = 15units, find the remaining angles and sides.
Find:
a. BC
b. AD
c. AC
Find x and y, in each of the following figure:
In the given figure; ∠B = 90°, ∠ADB = 30°, ∠ACB = 45° and AB = 24 m. Find the length of CD.
