7 ☐ 1. Find the local linear approximation of y = tan x at x = πT 4 О L(x) = 1.117+2.248 x -ㅠ) 7 4 О L(x) = − 1 + 2 ( x 120-17) О L(x) = 1.117 (2 17 (2-1) 7 +2.248 О L(x) = −1 ( 2 --=—177) + +2 ☐ ☐ 2. Find the local linear approximation of y = x + x³ at x = 0 ○ L(x) = 3(x − 3) ○ L(x) = x ○ L(x) = 3x ○ L(x) = 3x² ☐ ☐ 3. Solve x² - 9 = 0 using Newton's method. Show the first four iterations. Round to 4 decimal places for your answer but use all decimals in your calculator to get the next iteration value. = = 9 x1 = X2 x3 x4 =