Advertisements
Advertisements
प्रश्न
Solve the following equation for A, if sec 2A = 2
Advertisements
उत्तर
According to the question,
We have,
sec 2A = 2
sec 2A = sec 60°
2A = 60°
A = 30°
APPEARS IN
संबंधित प्रश्न
If 4 sin2 θ – 1 = 0 and angle θ is less than 90°, find the value of θ and hence the value of cos2 θ + tan2 θ.
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 magnitude of angle A, if 2 cos2 A - 3 cos A + 1 = 0
If A = 30°, verify that cos2θ = `(1 - tan^2 θ)/(1 + tan^2 θ)` = cos4θ - sin4θ = 2cos2θ - 1 - 2sin2θ
Find the value of 'x' in each of the following:
Find the value of 'y' if `sqrt(3)` = 1.723.
Given your answer correct to 2 decimal places.
Express each of the following in terms of trigonometric ratios of angles between 0° and 45°: cosec64° + sec70°
Express each of the following in terms of trigonometric ratios of angles between 0° and 45°: cos84° + cosec69° - cot68°
Evaluate the following: sin(35° + θ) - cos(55° - θ) - tan(42° + θ) + cot(48° - θ)
