How do I find the linearization for question 5 and 6

L UI W/U LAPI 5. Linearization02a 10 pts possible Find the linearization of f(z) = 2 cosa 1. L ( z ) = V2 (1+ - 7+2) at I = -7/4. . 2 1(2 ) = 1+-7 -2 3. L(z) = 1 - -7+2 . 4. L( x) - V2(1 - -7+2) 0 5. L(2) = 1 - -7-1 0 6. L(x) - V2( 1 + - 7 -2) PDF W/0 expl 6. Linearization02b 10 pts possible Find the linearization of f(x) = 4 cos x . 1. L(z) = V2 ( 2 + 5 7 +2x) at a = 7/4. . 2. L(x) = V2(2+ 57 - 2x) 3. L(x) = V2(2 - 57 + 2x) . 4. L(x) = 2+57 -2x 0 5. L(I) = 2_1, T - 2x 0 6. L(x) = 2- 57 + 20