Advertisements
Advertisements
Question
Solve the following equation for A, if sec 2A = 2
Advertisements
Solution
According to the question,
We have,
sec 2A = 2
sec 2A = sec 60°
2A = 60°
A = 30°
APPEARS IN
RELATED QUESTIONS
If 2 cos (A + B) = 2 sin (A - B) = 1;
find the values of A and B.
Evaluate the following: `((1 - cosθ)(1 + cosθ))/((1 - sinθ)(1 + sinθ)` if θ = 30°
If θ < 90°, find the value of: sin2θ + cos2θ
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
If ΔABC is a right triangle such that ∠C = 90°, ∠A = 45° and BC =7units, find ∠B, AB and AC.
Find the length of AD. Given: ∠ABC = 60°, ∠DBC = 45° and BC = 24 cm.
If tan x° = `(5)/(12) . tan y° = (3)/(4)` and AB = 48m; find the length CD.
Evaluate the following: `(5sec68°)/("cosec"22°) + (3sin52° sec38°)/(cot51° cot39°)`
Express each of the following in terms of trigonometric ratios of angles between 0° and 45°: cos72° - cos88°
If cos3θ = sin(θ - 34°), find the value of θ if 3θ is an acute angle.
