Evaluate the definite integral integral93 2x 5dxSolutionint

Evaluate the definite integral integral^9_3 (2x + 5)dx

Solution

integration((2x+5)dx)₃⁹

integration of x^n= x^(n+1)/(n+1)

integration ((2x+5)dx)₃⁹= (2x^2/3 +5x)₃⁹

   ^{= (2(9)^2/3 +5(9))-(2(3)^2/3 +5(3))}

^=99-21=78