- 15 Evaluate the integral: 12 VI2 + 100 (A) Which trig substitution is correct for this integral? Or = 10 sin(0) Or = 100 sec(0) Or = 100 sin(0) Or = 100 tan(0) Or = 10 tan(0) Or= - 15 sec(0) (B) Which integral do you obtain after substituting for r and simplifying? Note: to enter 0, type the word theta. de (C) What is the value of the above integral in terms of ? + C (D) What is the value of the original integral in terms of I? + C