Equation involving both trigonometric and algebraic functions

**zhangvict** · August 1st 2011, 03:47 AM

How can one solve equations like this?
$(x+1)(tanx) = -1$

**e^(i*pi)** · August 1st 2011, 03:50 AM

With a numerical method - I'd write the equation as $f(x) = (x+1)\tan(x) + 1 =0$ and look for where f(x) changes sign.

**mr fantastic** · August 1st 2011, 01:30 PM

Originally Posted by zhangvict

How can one solve equations like this?
$(x+1)(tanx) = -1$

Using CAS technology or applying a numerical method or using a graphical approach.

Thread: Equation involving both trigonometric and algebraic functions