Use Newton's method to find the first 5 approximations of the solution to the equation LaTeX:  \displaystyle \cos{\left(x \right)}= \frac{293 x^{3}}{500} - 4 using LaTeX:  \displaystyle x_0=1 .

Using the formula for Newton's method gives LaTeX:  x_{n+1} =  x_{n} - \frac{- \frac{293 x_{n}^{3}}{500} + \cos{\left(x_{n} \right)} + 4}{- \frac{879 x_{n}^{2}}{500} - \sin{\left(x_{n} \right)}}   Using LaTeX:  \displaystyle x_0 = 1 and LaTeX:  \displaystyle n = 0,1,2,3, and LaTeX:  \displaystyle 4 gives: LaTeX:  x_{1} =  (1.0000000000) - \frac{- \frac{293 (1.0000000000)^{3}}{500} + \cos{\left((1.0000000000) \right)} + 4}{- \frac{879 (1.0000000000)^{2}}{500} - \sin{\left((1.0000000000) \right)}} = 2.5211950158 LaTeX:  x_{2} =  (2.5211950158) - \frac{- \frac{293 (2.5211950158)^{3}}{500} + \cos{\left((2.5211950158) \right)} + 4}{- \frac{879 (2.5211950158)^{2}}{500} - \sin{\left((2.5211950158) \right)}} = 1.9933979331 LaTeX:  x_{3} =  (1.9933979331) - \frac{- \frac{293 (1.9933979331)^{3}}{500} + \cos{\left((1.9933979331) \right)} + 4}{- \frac{879 (1.9933979331)^{2}}{500} - \sin{\left((1.9933979331) \right)}} = 1.8602116730 LaTeX:  x_{4} =  (1.8602116730) - \frac{- \frac{293 (1.8602116730)^{3}}{500} + \cos{\left((1.8602116730) \right)} + 4}{- \frac{879 (1.8602116730)^{2}}{500} - \sin{\left((1.8602116730) \right)}} = 1.8520453922 LaTeX:  x_{5} =  (1.8520453922) - \frac{- \frac{293 (1.8520453922)^{3}}{500} + \cos{\left((1.8520453922) \right)} + 4}{- \frac{879 (1.8520453922)^{2}}{500} - \sin{\left((1.8520453922) \right)}} = 1.8520155902