Number of solution(s) of the equation tan3x+8sec3x−6tanxsecx+1=0 in [0,2π] is

How many solutions does the equation tan(x)=x have on the interval ]0,2π[ (note that this is an open interval).∞.2.1.

Find the number of solutions of tan x + sec x = 2 cos x in [0, 2π).

The value of  tan9o−tan27o−tan63o+tan81o is _____.

Find the value of tan-1 (tan 2π/3) (Answer: -π/3).

Find all solutions if 0 ≤ 𝜃 < 2𝜋. Use exact values only. Verify your answer graphically. (Enter your answers as a comma-separated list.)cos 2x = 32x = π6​,5π6​