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UNIVERSIDADE FEDERAL DE SANTA CATARINA CAMPUS DE JOINVILLE CURSO DE ENGENHARIA DA MOBILIDADE EMB 5001 – CÁLCULO DIFERENCIAL E INTEGRAL I Professores: Alexandre Mikowski e Rafael Machado Casali EXERCÍCIOS COMPLEMENTARES Unidade 5 – Integrais definidas e indefinidas ____________________________________________________________________________________________ 1 – Encontrar uma primitiva F, da função xxxf += 32)( , que satisfaça .1)1( =F ____________________________________________________________________________________________ 2 – Determinar a função )(xf tal que .2cos 2 1)( 2 cxxdxxf ++=∫ ____________________________________________________________________________________________ 3 – Encontrar uma primitiva da função 1 1)( 2 += xxf que se anule no ponto x = 2. ____________________________________________________________________________________________ 4 – Calcular as integrais indefinidas. a) ∫ 3x dx b) ∫ + dt t t 3 2 19 c) ( )∫ ++ dxcbxax 334 ____________________________________________________________________________________________ ____________________________________________________________________________________________ d) ∫ + dxxx x 3 1 e) ( )∫ − dxx 32 2 f) ∫ − dy y y 2 12 g) dxxx∫ 3 h) ∫ −+ dx x xx 4 25 12 i) ∫ dxx x 2cos sen j) ∫ − dx x21 9 k) ∫ − dx xx 24 4 l) dx x xxxx ∫ +−+− 2 234 12698 m) dt t t et ∫ ++ 1 2 n) θθθ d tgcos∫ ⋅ o) ( )dxee xx∫ −− p) ( )dtttttt∫ ++++ 543 q) dx x x ∫ − − 531 ____________________________________________________________________________________________ ____________________________________________________________________________________________ r) ( )dttett∫ +− cosh22 s) dt t tet∫ +− 3 4 316 t) ( ) ( ) dxxx 11 22 +−∫ . ____________________________________________________________________________________________ 5 – Calcular as integrais definidas. [1] ( )∫ − + 2 1 31 dxxx [2] ( )∫ − +− 0 3 2 74 dxxx [3] ∫ 2 1 6x dx [4] dttt∫ 9 4 2 [5] ∫ + 1 0 13y dy [6] dxx∫ pi2 0 sen [7] dtt∫ − − 5 2 42 [8] dxxx∫ +− 4 0 2 23 [9] ( )∫ + 4 1 3 1xx dx ____________________________________________________________________________________________ ____________________________________________________________________________________________ [10] ( ) dxx 12 4 0 21 ∫ −+ [11] ( )dxxx∫ +2 0 52 [12] dx x xxx ∫ +−+2 1 2 23 2575 [13] dt t t∫ − − − 2 3 2 1 . ____________________________________________________________________________________________ 6 – Encontrar a área da região limitada pelas curvas dadas. a) 2 e ,21 +−=== xyyxx b) yxxy 2 e 2 22 == c) 3 e 5 2 +=−= xyxy d) 6 e 6 1 2 == yxy e) 3 e 1 2 −=−= yxy f) 3 e 3 2 =+=+ xyyx ____________________________________________________________________________________________ 7 – Calcular as integrais usando o método da substituição. Derivar o resultado da integral obtida e verificar se encontra a f (x). [1] ( ) ( )∫ +−+ dxxxx 12322 102 [2] ( )∫ − dxxx 2713 2 ____________________________________________________________________________________________ ____________________________________________________________________________________________ [3] ∫ − 5 2 1x xdx [4] ∫ − dxxx 2345 [5] ∫ + dxxx 42 2 [6] ( )∫ + dtee tt 2312 2 [7] ∫ + 4t t e dte [8] ∫ + dx x e x 2 1 2 [9] ∫ dxxx sec tg 2 [10] ∫ dxxx cos sen 4 [11] ∫ dxx x 5cos sen [12] ∫ − dx x xx cos cos 5sen 2 [13] ∫ dxee xx 2 cos [14] ∫ dxx x 2 cos 2 [15] ( )∫ − θpiθ d 5sen [16] ∫ − dy y y 12 sen arc 2 ____________________________________________________________________________________________ ____________________________________________________________________________________________ [17] ∫ + θ θ θ d ba tg sec 2 2 [18] ∫ + 16 2x dx [19] ∫ +− 442 yy dy [20] θθθ d cos sen3∫ [21] dx x x ∫ 2ln [22] ( ) dxee axax∫ −+ 2 [23] dttt∫ + 243 [24] ∫ ++ 34204 4 2 xx dx [25] ∫ +− 14 3 2 xx dx [26] ∫ +162x x e dxe [27] ∫ − + dx x x 1 3 [28] ∫ xx dx 3ln 3 2 [29] ( )∫ + dxx 2 cos4sen pi [30] ∫ + dxxx 2 1 2 [31] ∫ dxxe x 23 ____________________________________________________________________________________________ ____________________________________________________________________________________________ [32] ( )∫ + 22 t dt [33] ∫ tt dt ln [34] ∫ − dxxx 2218 [35] ( )∫ + dxee xx 252 2 [36] ( )∫ + 51 vv dv [37] ∫ + 54 4 2t tdt [38] ∫ dxx x sen -3 cos [39] ∫ + dxxx 1 2 [40] ∫ − dxex x 54 [41] ∫ dttt cos 2 [42] ∫ + dxxx 568 32 [43] ∫ θθθ d 2 cos 2sen 2 1 [44] ( )∫ + dxx 35sec2 [45] ( )∫ − 3cos5 sen θ θ dθ [46] u du cotg [47] ( ) 0 ,1 23 >+∫ −− adtee atat ____________________________________________________________________________________________ ____________________________________________________________________________________________ [48] dx x x ∫ cos [49] dttt 4∫ − [50] ( )( )dxxxx∫ + 42sen 32 ____________________________________________________________________________________________ 8 – Resolver as seguintes usando a técnica de integração por partes. Derivar o resultado da integral obtida e verificar se encontra a f (x). 1) ∫ dxxx 5sen 2) ( )∫ − dxx 1ln 3) ∫ dtet t4 4) ( )∫ + dxxx 2 cos 1 5) ∫ dxxx 3ln 6) ∫ dxx cos 3 7) ∫ dx x e x 2 cos 8) ∫ dxxx ln 9) ∫ dxx cosec 3 ] 10) ∫ dxaxx cos 2 ____________________________________________________________________________________________ Observações: I. Os exercícios de 1 até 6 e 8 até 18 propostos foram selecionados do livro: FLEMING, D. M. & GONÇALVES, M. B. Cálculo A. Vol. 1; 6ª edição, Pearson Prentice Hall, São Paulo, 2007. Capítulo 6. II. A lista de exercícios corresponde aos tópicos da ementa: Integral definida e indefinida ____________________________________________________________________________________________
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