Use Newton's method to find the first 5 approximations of the solution to the equation LaTeX:  \displaystyle \cos{\left(x \right)}= \frac{149 x^{3}}{200} - 7 using LaTeX:  \displaystyle x_0=3 .

Using the formula for Newton's method gives LaTeX:  x_{n+1} =  x_{n} - \frac{- \frac{149 x_{n}^{3}}{200} + \cos{\left(x_{n} \right)} + 7}{- \frac{447 x_{n}^{2}}{200} - \sin{\left(x_{n} \right)}}   Using LaTeX:  \displaystyle x_0 = 3 and LaTeX:  \displaystyle n = 0,1,2,3, and LaTeX:  \displaystyle 4 gives: LaTeX:  x_{1} =  (3.0000000000) - \frac{- \frac{149 (3.0000000000)^{3}}{200} + \cos{\left((3.0000000000) \right)} + 7}{- \frac{447 (3.0000000000)^{2}}{200} - \sin{\left((3.0000000000) \right)}} = 2.3036676081 LaTeX:  x_{2} =  (2.3036676081) - \frac{- \frac{149 (2.3036676081)^{3}}{200} + \cos{\left((2.3036676081) \right)} + 7}{- \frac{447 (2.3036676081)^{2}}{200} - \sin{\left((2.3036676081) \right)}} = 2.0833548677 LaTeX:  x_{3} =  (2.0833548677) - \frac{- \frac{149 (2.0833548677)^{3}}{200} + \cos{\left((2.0833548677) \right)} + 7}{- \frac{447 (2.0833548677)^{2}}{200} - \sin{\left((2.0833548677) \right)}} = 2.0618749490 LaTeX:  x_{4} =  (2.0618749490) - \frac{- \frac{149 (2.0618749490)^{3}}{200} + \cos{\left((2.0618749490) \right)} + 7}{- \frac{447 (2.0618749490)^{2}}{200} - \sin{\left((2.0618749490) \right)}} = 2.0616795166 LaTeX:  x_{5} =  (2.0616795166) - \frac{- \frac{149 (2.0616795166)^{3}}{200} + \cos{\left((2.0616795166) \right)} + 7}{- \frac{447 (2.0616795166)^{2}}{200} - \sin{\left((2.0616795166) \right)}} = 2.0616795005