1. F
1. 3 F 13 F (60 )
2. F 1 F กF (20 )
F 2 F กF ก ก F F F (20 )
F 3 ก ก ก ก F F F (20 )
3. F F F F ก F 20 F ก ก F F
20 F
F 1 F กF
1. lim -x
x→ -1 x - 1
( ) 2 ก x<0 (5 )
2.
x→1
( )
lim x -x1 (5 )
3. ก F f(x 2) = x+1 F f(x) F x=0 F (10 )
( x + 1 )2
3
4. F กF f(x) = 3 xx -- 28 F F (1, 5) F (10 )
F 2 F กF ก ก F F F
1. ก F f(x) = xx- -11 F กF f x=2 (5 )
2. F 18 ก F
ก (5 )
3. ก F F F y = x3 3x2 + 6 (2, 2) (5 )
4. ก F f(x) = u(x) ⋅ v(x) u(x) = (x3 + k)2, v(x) = x2 + k, k ∈ R+ F f′( 1) = 72 F
f(k) (5 )
5. F F F F กF f(x) = x3 + 2x2 + x + 2 (10 )

2. F 3ก ก ก ก F
1. F F F F y = x2, F y=0 y=3 (10 )
2. F F F F F x 4x 8y 12 = 0
2
F y=3
ก F F F F ก F F y=0 (10 )
2
3. ก F f′(x) = x 2 4 F f(1) = 0
- F
x
1) กF f(x) F F [ 4, 0) ∪ (1, 5] F (5 )
2) f(x) F F F F F F (5 )
3) ก F y = f(x) (10 )
4. ก F g(x) = [u(x)]4 + 1, u′(x) = c , c F F u(0) = 1 u(1) = 3
x
1) F g′(1) (5 )
2) u(x) F F F F (5 )
3) ก F y = u(x) (10 )