Advertisements
Advertisements
Question
Find the value of 'x' in each of the following:
Advertisements
Solution
From the figure, we have
sin x = `"BC"/"AC"`
⇒ sin x = `(15/sqrt(2))/(15)`
⇒ sin x = `(1)/sqrt(2)`
⇒ sin x = sin45°
⇒ x = 45°.
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 cos 2A
If 3 tan A - 5 cos B = `sqrt3` and B = 90°, find the value of A
Find the value of 'A', if cot 3A = 1
Find the value of 'A', if (1 - cosec A)(2 - sec A) = 0
Solve for 'θ': `sin θ/(3)` = 1
In a right triangle ABC, right angled at C, if ∠B = 60° and AB = 15units, find the remaining angles and sides.
Find the value 'x', if:
In right-angled triangle ABC; ∠B = 90°. Find the magnitude of angle A, if:
a. AB is `sqrt(3)` times of BC.
B. BC is `sqrt(3)` times of BC.
Evaluate the following: sin31° - cos59°
