Question

If 3π/4 < α < π, then  is equal to

Solution

Correct option is

–1 – cot α

   

Since cot α < –1 when 3π/4 < α < π, we have  = –1 – cot α.

SIMILAR QUESTIONS

Q1

An angle α is divided into two parts so that the ratio of the tangents of these parts is λ. If the difference between these parts is x then sinx/sinα is equal to

Q2

 

 or equal to

Q3

Given θ Ïµ (0,π/4) and t1 = (tan θ)tanθ t2 = (tan θ)cotθt3 = (cot θ)tanθand t4 = (cot θ)cotθ then

Q4

If x = sin αy = sin βz = sin (α + β) then cos (α + β) =

Q5

The radius of the circle

 

Q6

If tan x + tan (x + π/3) + tan (x + 2π/3) = 3, then

Q7

The equation cos 2x + a sin x = 2a – 7 possesses a solution if

Q8

sin 470 + sin 610 – sin 110 – sin 250 is equal to

Q9

 

 

Q10