Question
Hello dear tutors, Good afternoon. If you see this post, could you please kindly review the two methods of calculations below to explain why their
Hello dear tutors,
Good afternoon. If you see this post, could you please kindly review the two methods of calculations below to explain why their answers are different? Method 1 is from the Calculus 2 textbook, and Method 2 is from the computer calculator.
Moreover, I agree with both methods of calculations because there is nothing wrong with both approaches. Method 1 is to substitute u=tan(x), and Method 2 (Computer's Method) is to substitute u=sec(x).
Although their approaches are both correct, their answers are different! We all know that sec(x) is not equal to tan(x). Could you please kindly help me to check why their answers are different?
Please see the following two attached pictures. Thanks a lot! I am looking forward to your reply.
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