Find
∫^[infinity]_-[infinity] x/(1+x^2)^2 dx.

Plz answer asap! i will reward brainliest and 12 points for these three questions!take notice: these three questions are completely different! 1) what is the percentage of sugar in the syrup made of 10 kg of water and 4 kg of suugar? 2) what was the original price if after 10% discount it became $450? 3) at first a price was decreased by 12%, then it was disounted again by an additional 5%. what is the percent of the total discount? , and remeber i will award brainliest and 12 points!

Graph the line y=4/3 x+1 . use the line tool and select two points on the line.

Perform the indicated operation and write the answer in the form a + bi. (-5 + 2) + (3 - 6i)