Use Newton's method to find the first 5 approximations of the solution to the equation LaTeX:  \displaystyle \cos{\left(x \right)}= \frac{47 x^{3}}{500} - 7 using LaTeX:  \displaystyle x_0=5 .

Using the formula for Newton's method gives LaTeX:  x_{n+1} =  x_{n} - \frac{- \frac{47 x_{n}^{3}}{500} + \cos{\left(x_{n} \right)} + 7}{- \frac{141 x_{n}^{2}}{500} - \sin{\left(x_{n} \right)}}   Using LaTeX:  \displaystyle x_0 = 5 and LaTeX:  \displaystyle n = 0,1,2,3, and LaTeX:  \displaystyle 4 gives: LaTeX:  x_{1} =  (5.0000000000) - \frac{- \frac{47 (5.0000000000)^{3}}{500} + \cos{\left((5.0000000000) \right)} + 7}{- \frac{141 (5.0000000000)^{2}}{500} - \sin{\left((5.0000000000) \right)}} = 4.2667407177 LaTeX:  x_{2} =  (4.2667407177) - \frac{- \frac{47 (4.2667407177)^{3}}{500} + \cos{\left((4.2667407177) \right)} + 7}{- \frac{141 (4.2667407177)^{2}}{500} - \sin{\left((4.2667407177) \right)}} = 4.0936061529 LaTeX:  x_{3} =  (4.0936061529) - \frac{- \frac{47 (4.0936061529)^{3}}{500} + \cos{\left((4.0936061529) \right)} + 7}{- \frac{141 (4.0936061529)^{2}}{500} - \sin{\left((4.0936061529) \right)}} = 4.0863559926 LaTeX:  x_{4} =  (4.0863559926) - \frac{- \frac{47 (4.0863559926)^{3}}{500} + \cos{\left((4.0863559926) \right)} + 7}{- \frac{141 (4.0863559926)^{2}}{500} - \sin{\left((4.0863559926) \right)}} = 4.0863443606 LaTeX:  x_{5} =  (4.0863443606) - \frac{- \frac{47 (4.0863443606)^{3}}{500} + \cos{\left((4.0863443606) \right)} + 7}{- \frac{141 (4.0863443606)^{2}}{500} - \sin{\left((4.0863443606) \right)}} = 4.0863443605