Question

Solve the following trigonometric functions with solutions in the interval :
tanxcosx+cos=0

Answer 1

Answer:

Step-by-step explanation:

tan x cos x+cos x=0

cos x (tan x+1)=0

cos x=0,x=π/2,3π/2

tan x+1=0

tan x=-1=-tan π/4=tan (π-π/4),tan (π+π/4)=tan 3π/4,5π/4

x=3π/4,5π/4