Find the value of 'A', if cot 3A = 1

Sum

cot 3A = 1
⇒ cot 3A = cot 45°
⇒ 3A = 45°
⇒ A = 15°.

shaalaa.com

Trigonometric Equation Problem and Solution

Is there an error in this question or solution?

Chapter 22: Trigonometrical Ratios of Standard Angles - Exercise 27.1

Chapter 22 Trigonometrical Ratios of Standard Angles
Exercise 27.1 | Q 4.6

Find the magnitude of angle A, if 2 tan 3A cos 3A - tan 3A + 1 = 2 cos 3A

Solve for x : cos `(x/(2)+10°) = (sqrt3)/(2)`

If sin α + cosβ = 1 and α= 90°, find the value of 'β'.

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.

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°: cosec64° + sec70°

Express each of the following in terms of trigonometric ratios of angles between 0° and 45°: cos84° + cosec69° - cot68°

If secθ= cosec30° and θ is an acute angle, find the value of 4 sin²θ - 2 cos²θ.