(Solved): please help i need the answer sooni will definitely like! 11) Consider the area bounder by y=3x, the ...

11) Consider the area bounder by y=3x, the x-axis, x=1 and x = 2 15 points a) Draw the area with a representative rectangle. b) Find an expression for the Riemann sum c) Evaluate the Riemann sum d) Find a definite integral that represents the area and use the Fundamental Theorem of Calculus to find the area. 72 72 n(n+1) n(n+17 ?²² n(n+1)(2n+1) 6 2 2 i-1 =