Use Newton's method to find the first 5 approximations of the solution to the equation LaTeX:  \displaystyle \cos{\left(x \right)}= \frac{34 x^{3}}{125} - 7 using LaTeX:  \displaystyle x_0=3 .

Using the formula for Newton's method gives LaTeX:  x_{n+1} =  x_{n} - \frac{- \frac{34 x_{n}^{3}}{125} + \cos{\left(x_{n} \right)} + 7}{- \frac{102 x_{n}^{2}}{125} - \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{34 (3.0000000000)^{3}}{125} + \cos{\left((3.0000000000) \right)} + 7}{- \frac{102 (3.0000000000)^{2}}{125} - \sin{\left((3.0000000000) \right)}} = 2.8217807470 LaTeX:  x_{2} =  (2.8217807470) - \frac{- \frac{34 (2.8217807470)^{3}}{125} + \cos{\left((2.8217807470) \right)} + 7}{- \frac{102 (2.8217807470)^{2}}{125} - \sin{\left((2.8217807470) \right)}} = 2.8128746123 LaTeX:  x_{3} =  (2.8128746123) - \frac{- \frac{34 (2.8128746123)^{3}}{125} + \cos{\left((2.8128746123) \right)} + 7}{- \frac{102 (2.8128746123)^{2}}{125} - \sin{\left((2.8128746123) \right)}} = 2.8128532479 LaTeX:  x_{4} =  (2.8128532479) - \frac{- \frac{34 (2.8128532479)^{3}}{125} + \cos{\left((2.8128532479) \right)} + 7}{- \frac{102 (2.8128532479)^{2}}{125} - \sin{\left((2.8128532479) \right)}} = 2.8128532478 LaTeX:  x_{5} =  (2.8128532478) - \frac{- \frac{34 (2.8128532478)^{3}}{125} + \cos{\left((2.8128532478) \right)} + 7}{- \frac{102 (2.8128532478)^{2}}{125} - \sin{\left((2.8128532478) \right)}} = 2.8128532478