me- sin'o = tan²0. livid

(2tan30o)/(1-tan^2 30o) is equal to cos60o (b) sin60o (c) tan60o (d) sin30o

Solve sin x tan x -sin x+ tan x-1=0 for x in [0, 2pi] .

Solve sin x tan x -sin x+ tan x-1=0 for x in [0, 2pi] .

Solve sin x tan x -sin x+ tan x-1=0 for x in [0, 2pi] .

Solve sin x tan x-sin x + tan x-1 = 0

(2tan30o)/(1+tan^2 30o) is equal to sin60o (b) cos60o (c) tan60o (d) sin30o

Express each of the following in terms of trigonometric ratios of angles between 0o and 45o : sin81o+tan81o (ii) sin72o+cot72o

lim_ (x rarr0) (sin (tan x) -tan (sin x)) / (tan ^ (- 1) (sin ^ (- 1) x) -sin ^ (- 1) (tan ^ (- 1) x )) =

Prove that : (cos 20^0 - sin 20^0)/(cos 20^0 + sin 20^0) = tan 25^0