Question

How do you solve `sqrt2tanxcosx-tanx=0`?

Answer 1

`f(x) = tan x.(sqr2.cos x - 1),`

Next, solve the 2 basic trig equations:

`tan x = 0 -> x = 0 and x = Pi`

`cos x = 1/(sqr2) = (sqr2)/2 --> x = Pi/4`