(a),∫ (upper : ln2;lower: -ln2) (e^x+2)(e^x+2x+3) dx by using a suitable substitution.
(b)using the result of (a),evaluate ,∫(e^x+2)(e^x+2x+3)dx .
我唔唔識做(b)呀!!!唔該大家,我聽日要考t^t
更新1:
(b)戈個都係definite integration都係upper : ln2;lower: -ln2 sor打少左
更新2:
(b)真係sorry (b)係,∫(upper : ln2;lower: -ln2)e^x(e^x+2x+3)dx 多謝提醒!!
更新3:
,∫ e^x(e^x+2x+3)dx
