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reverse chain rule

can i also say consider y= tan^2 (x) and when I apply the reverse chain rule I get y=5/2 tan^2 (x) +c

Reply 1

Screenshot 2025-04-12 092644.png

Reply 2

Original post
by Noname60
can i also say consider y= tan^2 (x) and when I apply the reverse chain rule I get y=5/2 tan^2 (x) +c

Yes, you can do that. Your integral is effectively the same as the one in the mark scheme as tan^2(x) = sec^2(x) - 1. The "-1" can be absorbed into the arbitrary constant of integration C.

Reply 3

Original post
by old_engineer
Yes, you can do that. Your integral is effectively the same as the one in the mark scheme as tan^2(x) = sec^2(x) - 1. The "-1" can be absorbed into the arbitrary constant of integration C.

thanks alot

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