Evaluate the following: cot27° - tan63° - Mathematics

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

Solve the following equation for A, if sin 3 A = `sqrt3 /2`

Use the given figure to find:
(i) tanθ°
(ii) θ°
(iii) sin²θ° - cos²θ°(iv) Use sin θ° to find the value of x.

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

If sin 3A = 1 and 0 < A < 90^°, find `tan^2A - (1)/(cos^2 "A")`

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

cos 3θ

Find the length of AD. Given: ∠ABC = 60°, ∠DBC = 45° and BC = 24 cm.

Evaluate the following: `(sin62°)/(cos28°)`

Evaluate the following: sin22° cos44° - sin46° cos68°

Evaluate the following: `(3sin37°)/(cos53°) - (5"cosec"39°)/(sec51°) + (4tan23° tan37° tan67° tan53°)/(cos17° cos67° "cosec"73° "cosec"23°)`

Evaluate the following: `(2sin25° sin35° sec55° sec65°)/(5tan 29° tan45° tan61°) + (3cos20° cos50° cot70° cot40°)/(5tan20° tan50° sin70° sin40°)`