You need to solve for x the equation `tan 4x = -3/3 =gt tan 4x = -1` .
You need to use inverse trigonometric functions to solve this equation such that:
`4x = tan^(-1) (-1) + n*pi`
`4x = -pi/4 + n*pi`
You need to find x only, hence you need to divide by 4 both sides such that:
`x = -pi/16 + n*pi/4`
Hence, the general solution to trigonometric equation is `x = -pi/16 + n*pi/4.`