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11/14/2007 [ 1 / 5 ] (i) f(x) = log(1 + x2) (ii) f(x) = exp(sin x) (iii) f(x

1 − 2x x2 (2) lim cosx + 1 sin 2x 4.

1 − 2x x2 (2) lim cosx + 1 sin 2x 4.

(1) ∑ ( 1 − 1 n )n2 (2) ∑ sin(nx) n2 2. (a) ∑ xn n! (b) E(x) = ∑ xn n! 3

(1) ∑ ( 1 − 1 n )n2 (2) ∑ sin(nx) n2 2. (a) ∑ xn n! (b) E(x) = ∑ xn n! 3

(1) ( sin x+cos−1 x (2) { (x+1)x}′ (3) ( cosh x )(n) ( ) (4) ( x sinx )(n

(1) ( sin x+cos−1 x (2) { (x+1)x}′ (3) ( cosh x )(n) ( ) (4) ( x sinx )(n