- 13 de Lx²/x² + 25 Evaluate the integral: (A) Which trig substitution is correct for this integral? Or = 25 sin(0) Or = - 13 sec(0) Ox = 5 sin(0) Oz = 25 tan(0) Oz = 5 tan(0) Ox = 25 sec(0) (B) Which integral do you obtain after substituting for a and simplifying? Note: to enter 0, type the word theta. de (C) What is the value of the above integral in terms of 0? + C (D) What is the value of the original integral in terms of æ? + C

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