Indicate the u-substitution.(a) 3x2(1 + x3)25 dx =u25 du if u =and du = .(b) 2x sin x2
Chapter 5, Problem 1(choose chapter or problem)
Indicate the u-substitution.
(a) \(\int 3 x^{2}\left(1+x^{3}\right)^{25} d x=\int u^{25} d u\) if u = ________ and du = _________.
(b) \(\int 2 x \sin x^{2} d x=\int \sin u d u\) if u = __________ and du = __________.
(c) \(\int \frac{18 x}{1+9 x^{2}} d x=\int \frac{1}{u} d u\) if u = ___________ and du = ____________.
(d) \(\int \frac{3}{1+9 x^{2}} d x=\int \frac{1}{1+u^{2}} d u\) if u = ___________ and du = ____________.
Equation Transcription:
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Text Transcription:
integral 3x^2 (1+x^3)^25 dx=integral u^25 du
integral 2x sin x^2 dx=integral sin u du
integral 18x/1+9x^2 dx=integral 1/u du
integral 3/1+9x^2 dx=integral 1/1+u^2 du
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