II seria zada« domowych z Analizy I 18.11.2015
Zad. 1 (a) P∞n=1
1 nE(√
n) ; (b) P∞n=1(E(√1n)−√1n); (c) P∞n=1 (−1)n√
n E(n√
2); (d) P∞n=1sinn+1n2π ; (e) P∞n=1(√ n + 1−
√4
n2+ n + 1)p; (h) P∞n=1(3−2n3+2n)n; (k) P∞n=1sin π√
n2+ 1 ;(n) P∞n=1logn(n+1)n2+1 ;(p) P∞n=1(1−
√1
n)n;(q) P∞n=1n1log(1+n1) ;(r) P∞n=1(
√n−1+√ n+1
2 −√
n) ;(s) P∞n=1n(n+1)nn+1n ;(t) P∞n=1log(2n+1)np ; (u) P∞n=133
√
n2 +1
2n ;(x) P∞n=1 n√ 1
(n+1)(n+2)...(n+n) ;(y) P∞n=1(1+n2+n2)p;(z) P∞n=1 nn+1
(2n2+n+1)n−12
; (aa) P∞n=1
(n−2n1)n nn− 12n
;(ac) P∞n=1( q
1 +n1−q
1 −n1) ; (ad) P∞n=1 n3 5
√
2n ; (ae) P∞n=1n33−
√n; (af) P∞
n=1log(cosn1) ; (ag) P∞n=1(−1)nlog(1 +n1); (ai) P∞n=1n! sin2πn ; (ak) P∞n=1
3n n
11−n ; (al) P∞n=1
3n
n7−n; (an) P∞n=1(n−1n+1)n(n−1) ; (ao) P∞n=2 1
n log n ; (ap) P∞n=2 (−1)n
n log n ; (aq) P∞
n=1 (n!)2
(2n)! ; (ar) P∞n=2 1
(log n)log n ; (as) P∞n=2(log n)− log(log n); (at) P∞n=2(log log n)− log n; (au) P∞
n=1 1 n√n
n ;(aw) P∞n=1 np
n√
n!; (ax) P∞n=1(1n−logn+1n ) ; (ay) P∞n=1((−1)√nn+n1) ; (az) P∞n=3 (−1)n E(√n
5); (ba) P∞n=1(2 − √n
n)n ; (bb) P∞n=1(1 − n q
1 − n1); (bc) P∞n=1sin(π√n
n3+ n) ; Zad. 2
Dobra¢ parametry a, b, c tak, »eby funkcje f, g : R → R okre±lone nast¦puj¡co:
a) f (x) =
sin ax
x dla x < 0
x3−1
x2+x−2 dla 0 ≤ x < 1
c dla x = 1
x2+(b−1)x−b
x−1 dla x > 1
; b) g(x) =
( 1
1+ea/x dla x 6= 0 b dla x = 0.
byªy ci¡gªe na R.
Zad. 3
Wyznaczy¢ pochodne nast¦puj¡cych funkcji:
a) f(b) = ax+ba+b, ¡) f(x) = (x − a)(x − b), b) y(x) = (x + 1)(x + 2)2(x + 3)3, c) f(x) = (x sin t + cos t)(x cos t − sin t), ¢) f(t) = (x sin t + cos t)(x cos t − sin t), d) y(x) = (1 + nxm)(1 + mxn), e) f(x) =1x+x22 +x33, ¦) f(x) =αx+βγx+δ, f) f(x) = (1−x)(1+x)pq, g) f(x) =√1x+ √31x, h) f(x) =q3
1 +p3 1 +√3
x, i) f(x) =q3
1+x3 1−x3, j) f(x) = n+mp(1 − x)m(1 + x)n, k) f(x) =√1+x2(x+1√
1+x2), l) f(x) = cos(2x) − 2 sin(x), ª) f(x) = sin(cos2x) cos(sin2x), m) f(x) = cos1nx, n) f(x) =sin x−x cos x
cos x+x sin x,
«) y(x) = tg(√7x) ctg(
√x
7 ), o) f(x) =sin2(x/a)1 +cos2(x/a)1 , ó) f(t) = e−t2, p) y(x) = etg(1/x), q) z(t) =
1−t2
2 sin t −(1+t)2 2cos t
e−t, r) f(x) =a sin(bx)−b cos(bx)
√a2+b2 eax, s) ξ(t) = taa+ ata+ aat, (a > 0), ±) f(x) =14lnxx22−1+1, t) y(x) = 2√16lnx
√3−√ 2 x√
3+√ 2, u) f(x) = 1−k1 ln1+x1−x−
√k 1−kln1+x
√k 1−x√
k, (k > 0), v) r(t) =√
t + 1 − ln(1 +√ t + 1), w) f(x) = ln(x+√
x2+ 1)−arcsinh x, x) φ(t) = ln tg 2t+π4
, y) f(x) = lnb+a cos x+a+b cos x√b2−a2sin x, (0 < a < b), z) f(t) = t(sin(ln t) − cos(ln t)), ¹) y(x) = x +√
1 − x2arc cos x,
») f(x) = x arc sinq x
1+x+arc tg√ x−√
x, α) f(x) = arc sin(sin x), β) f(x) = arccot sin x+cos x sin x−cos x
, γ) y(x) = arc sin 1−x1+x22
, δ) y(t) = arc cos sin2t−cos2t
, ) f(x) = em arc sin x(cos(m arc sin x)+
sin(m arc sin x)), ζ) f (x) = (log x)logxx, η) y(x) = arc tg(tgh x), θ) f (x) = √x x, ι) f (x) = ln x√
ln x.