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By using the integration by
By using the integration by substitution method :
u=2x
du= 2dx ===> 1/2 du=dx
so, after substitution with the variable u in the integral will have this answer :
1/2 ln(sec(2x) +tan(2x) ) +C
==============================
1) if you really want to improve your skills in integrals, study these tutorials from the links below :
https://www.studypool.com/documents/7139459/methods-of-integral-calculation-part-1
https://www.studypool.com/documents/8135108/methods-of-integral-calculation-part-2-calculus
https://www.studypool.com/documents/8135115/methods-of-integral-calculation-part-3-calculus
2) This is the best explanation for the integrals methods with examples, step by step. It helped me a lot & I'm sure it will be very useful & helpful for you .
Thank you!!!
Thank you!!!