Utilizando mudança de variável, calcule as seguintes integrais:
(a) integral raiz1-4 x^2 d x
(b) integral 1raiz4-x^2 d x
© integral x^2 raiz1-x^2 d x
(d) integral raiz9-4 x^2 d x
(e) integral sen theta(cos theta+5)^7 d theta
(f) integral raiz-x^2+2 x+2 d x
(g) integral raiz9-(x-1)^2 d x
(h) integral0^pi2 2raiz1-sen^2(z) d z
(i) integral raiz-x^2+2 x+3 d x.

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