Use Newton's method to find the first 5 approximations of the solution to the equation LaTeX:  \displaystyle \cos{\left(x \right)}= \frac{104 x^{3}}{125} - 7 using LaTeX:  \displaystyle x_0=1 .

Using the formula for Newton's method gives LaTeX:  x_{n+1} =  x_{n} - \frac{- \frac{104 x_{n}^{3}}{125} + \cos{\left(x_{n} \right)} + 7}{- \frac{312 x_{n}^{2}}{125} - \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{104 (1.0000000000)^{3}}{125} + \cos{\left((1.0000000000) \right)} + 7}{- \frac{312 (1.0000000000)^{2}}{125} - \sin{\left((1.0000000000) \right)}} = 3.0099956933 LaTeX:  x_{2} =  (3.0099956933) - \frac{- \frac{104 (3.0099956933)^{3}}{125} + \cos{\left((3.0099956933) \right)} + 7}{- \frac{312 (3.0099956933)^{2}}{125} - \sin{\left((3.0099956933) \right)}} = 2.2766245442 LaTeX:  x_{3} =  (2.2766245442) - \frac{- \frac{104 (2.2766245442)^{3}}{125} + \cos{\left((2.2766245442) \right)} + 7}{- \frac{312 (2.2766245442)^{2}}{125} - \sin{\left((2.2766245442) \right)}} = 2.0235864030 LaTeX:  x_{4} =  (2.0235864030) - \frac{- \frac{104 (2.0235864030)^{3}}{125} + \cos{\left((2.0235864030) \right)} + 7}{- \frac{312 (2.0235864030)^{2}}{125} - \sin{\left((2.0235864030) \right)}} = 1.9937529749 LaTeX:  x_{5} =  (1.9937529749) - \frac{- \frac{104 (1.9937529749)^{3}}{125} + \cos{\left((1.9937529749) \right)} + 7}{- \frac{312 (1.9937529749)^{2}}{125} - \sin{\left((1.9937529749) \right)}} = 1.9933576622