Evaluate the following: cot27° - tan63°

Sum

cot27° - tan63°
= cot(90° - 63°) - tan63°
= tan63° - tan63°
= 0.

shaalaa.com

Trigonometric Equation Problem and Solution

Is there an error in this question or solution?

Chapter 27: Trigonometrical Ratios of Standard Angles - Exercise 27.3

Chapter 27 Trigonometrical Ratios of Standard Angles
Exercise 27.3 | Q 2.2

Calculate the value of A, if (sin A - 1) (2 cos A - 1) = 0

Calculate the value of A, if (cosec 2A - 2) (cot 3A - 1) = 0

Solve for x : sin² x + sin² 30° = 1

Find the value of 'A', if cosec 3A = `(2)/sqrt(3)`

If θ < 90°, find the value of: `tan^2θ - (1)/cos^2θ`

If `sqrt(3)`sec 2θ = 2 and θ< 90°, find the value of θ

Find the value of: `sqrt((1 - sin^2 60°)/(1 + sin^2 60°)` If 3 tan²θ - 1 = 0, find the value
a. cosθ
b. sinθ

Find the value of 'x' in each of the following:

Find lengths of diagonals AC and BD. Given AB = 24 cm and ∠BAD = 60°.

Evaluate the following: `(sin0° sin35° sin55° sin75°)/(cos22° cos64° cos58° cos90°)`