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Posted: **Tue May 10, 2022 3:35 pm**

: 27 1 X2 Cos 3x Dx A O 1x Sin3x Excos3x Zsin3x 2 Sin3x C B Xsin3x 2xcos3x 2 Sin3x C C 0 Xsin3x Z 1 (48.59 KiB) Viewed 22 times

27 1) / x2 cos 3x dx = a) o 1x?sin3x + " Excos3x - zsin3x 2.sin3x + c b)© xsin3x ? 2xcos3x - 2 sin3x + c c)0 £xsin3x - zxcos3x + 2zsin3x + d)0 - {x'sin3x + zxcos3x + 2zsin3x 3x b) - 27 o 2. - C 27 ) O - + c