((a-b)^(3)-(a+b)^(3))/(2)+a(a^(2)+3b^(2))=?

(a ^ (2) -b ^ (2)) / (ab) - (a ^ (3) -b ^ (3)) / (a ^ (2) -b ^ (2))

If (2a - 3b)/(2a+3b) = 1/3 , then find the value of (2a^(3) - 3b^(3))/(2a^(3) + 3b^(3)) .

(2a+3b)(a-b)=2a^(2)-3b^(2)

The line (x)/(a)+(y)/(b)=1 meets the x -axis at A, the y-axis at B, and the line y=x at C such,that the area of Delta AOC is twice the area of Delta BOC. Then the coordinates of C are ((b)/(3),(b)/(3))(b)((2a)/(3),(2a)/(3))((2b)/(3),(2b)/(3))(d) none of these