ANSWERS: 4

Use newton's method using an initial estimate. Also graph it and see. Some trig identity is helpful too

Use newton's method using an initial estimate. Also graph it and see. Some trig identity is helpful too Eg. Tan x = sin x / cos x So cos x cancels out in first term of LHS

/cos"3.2, si{_+, Tan" ?>"

You can simplify this using algebra. add cos x to both sides, then, as long as cos x is not zero, you can divide both sides by cos x. So root three tan x = 1. So pi/6 radians works. But plug it in and see if it works. Incidentally, though, if cos x = 0, the equation also works, so keep in mind that there are multiple solutions.
Copyright 2023, Wired Ivy, LLC